42151223442131 has 4 divisors (see below), whose sum is σ = 42151459341000. Its totient is φ = 42150987543264.

The previous prime is 42151223442091. The next prime is 42151223442149. The reversal of 42151223442131 is 13124432215124.

42151223442131 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 is a cyclic number.

It is not a de Polignac number, because 42151223442131 - 2¹⁴ = 42151223425747 is a prime.

It is a super-2 number, since 2×42151223442131² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42151223442091 and 42151223442100.

It is not an unprimeable number, because it can be changed into a prime (42151223444131) 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, 117681206 + ... + 118038843.

It is an arithmetic number, because the mean of its divisors is an integer number (10537864835250).

Almost surely, 2^{42151223442131} is an apocalyptic number.

42151223442131 is a deficient number, since it is larger than the sum of its proper divisors (235898869).

42151223442131 is a wasteful number, since it uses less digits than its factorization.

42151223442131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235898868.

The product of its digits is 46080, while the sum is 35.

Adding to 42151223442131 its reverse (13124432215124), we get a palindrome (55275655657255).

The spelling of 42151223442131 in words is "forty-two trillion, one hundred fifty-one billion, two hundred twenty-three million, four hundred forty-two thousand, one hundred thirty-one".