123031222130012 has 48 divisors (see below), whose sum is σ = 254322416472768. Its totient is φ = 50975826370560.

The previous prime is 123031222130009. The next prime is 123031222130083. The reversal of 123031222130012 is 210031222130321.

It is a super-2 number, since 2×123031222130012² (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 123031222130012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 378041189 + ... + 378366492.

It is an arithmetic number, because the mean of its divisors is an integer number (5298383676516).

Almost surely, 2^{123031222130012} is an apocalyptic number.

It is an amenable number.

123031222130012 is an abundant number, since it is smaller than the sum of its proper divisors (131291194342756).

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

123031222130012 is a wasteful number, since it uses less digits than its factorization.

123031222130012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756407886 (or 756407884 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 123031222130012 its reverse (210031222130321), we get a palindrome (333062444260333).

The spelling of 123031222130012 in words is "one hundred twenty-three trillion, thirty-one billion, two hundred twenty-two million, one hundred thirty thousand, twelve".