123112112002 has 64 divisors (see below), whose sum is σ = 206270281728. Its totient is φ = 54643000000.

The previous prime is 123112111987. The next prime is 123112112027. The reversal of 123112112002 is 200211211321.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 59675223 + ... + 59677285.

It is an arithmetic number, because the mean of its divisors is an integer number (3222973152).

Almost surely, 2^123112112002 is an apocalyptic number.

123112112002 is a deficient number, since it is larger than the sum of its proper divisors (83158169726).

123112112002 is a wasteful number, since it uses less digits than its factorization.

123112112002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2535.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 123112112002 its reverse (200211211321), we get a palindrome (323323323323).

The spelling of 123112112002 in words is "one hundred twenty-three billion, one hundred twelve million, one hundred twelve thousand, two".