123311031112002 has 16 divisors (see below), whose sum is σ = 246741607601280. Its totient is φ = 41083752807792.

The previous prime is 123311031112001. The next prime is 123311031112013. The reversal of 123311031112002 is 200211130113321.

It is a super-2 number, since 2×123311031112002² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 123311031112002.

It is not an unprimeable number, because it can be changed into a prime (123311031112001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4981043977 + ... + 4981068732.

It is an arithmetic number, because the mean of its divisors is an integer number (15421350475080).

Almost surely, 2^{123311031112002} is an apocalyptic number.

123311031112002 is an abundant number, since it is smaller than the sum of its proper divisors (123430576489278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123311031112002 is a wasteful number, since it uses less digits than its factorization.

123311031112002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9962114777.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 123311031112002 its reverse (200211130113321), we get a palindrome (323522161225323).

The spelling of 123311031112002 in words is "one hundred twenty-three trillion, three hundred eleven billion, thirty-one million, one hundred twelve thousand, two".