123120211033 has 8 divisors (see below), whose sum is σ = 130104508320. Its totient is φ = 116186342400.

The previous prime is 123120211031. The next prime is 123120211043. The reversal of 123120211033 is 330112021321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123120211033 - 2¹ = 123120211031 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123120211033.

It is not an unprimeable number, because it can be changed into a prime (123120211031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12602143 + ... + 12611908.

It is an arithmetic number, because the mean of its divisors is an integer number (16263063540).

Almost surely, 2^123120211033 is an apocalyptic number.

It is an amenable number.

123120211033 is a deficient number, since it is larger than the sum of its proper divisors (6984297287).

123120211033 is a wasteful number, since it uses less digits than its factorization.

123120211033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25214327.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 123120211033 its reverse (330112021321), we get a palindrome (453232232354).

It can be divided in two parts, 123120 and 211033, that added together give a triangular number (334153 = T₈₁₇).

The spelling of 123120211033 in words is "one hundred twenty-three billion, one hundred twenty million, two hundred eleven thousand, thirty-three".