123112012054 has 16 divisors (see below), whose sum is σ = 195607990800. Its totient is φ = 57912205824.

The previous prime is 123112012043. The next prime is 123112012057. The reversal of 123112012054 is 450210211321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123112012057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 626739 + ... + 799390.

It is an arithmetic number, because the mean of its divisors is an integer number (12225499425).

Almost surely, 2^123112012054 is an apocalyptic number.

123112012054 is a deficient number, since it is larger than the sum of its proper divisors (72495978746).

123112012054 is a wasteful number, since it uses less digits than its factorization.

123112012054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1428687.

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 123112012054 its reverse (450210211321), we get a palindrome (573322223375).

The spelling of 123112012054 in words is "one hundred twenty-three billion, one hundred twelve million, twelve thousand, fifty-four".