42151223442133 has 4 divisors (see below), whose sum is σ = 45393625245388. Its totient is φ = 38908821638880.

The previous prime is 42151223442091. The next prime is 42151223442149. The reversal of 42151223442133 is 33124432215124.

42151223442133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3462848322129 + 38688375120004 = 1860873^2 + 6219998^2 .

It is a cyclic number.

It is not a de Polignac number, because 42151223442133 - 2¹⁷ = 42151223311061 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42151223442092 and 42151223442101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42151223442173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1621200901608 + ... + 1621200901633.

It is an arithmetic number, because the mean of its divisors is an integer number (11348406311347).

Almost surely, 2^{42151223442133} is an apocalyptic number.

It is an amenable number.

42151223442133 is a deficient number, since it is larger than the sum of its proper divisors (3242401803255).

42151223442133 is a wasteful number, since it uses less digits than its factorization.

42151223442133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3242401803254.

The product of its digits is 138240, while the sum is 37.

Adding to 42151223442133 its reverse (33124432215124), we get a palindrome (75275655657257).

The spelling of 42151223442133 in words is "forty-two trillion, one hundred fifty-one billion, two hundred twenty-three million, four hundred forty-two thousand, one hundred thirty-three".