123130331012 has 24 divisors (see below), whose sum is σ = 234849147456. Its totient is φ = 56144690208.

The previous prime is 123130330951. The next prime is 123130331039. The reversal of 123130331012 is 210133031321.

123130331012 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×123130331012² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14260088 + ... + 14268719.

It is an arithmetic number, because the mean of its divisors is an integer number (9785381144).

Almost surely, 2^123130331012 is an apocalyptic number.

It is an amenable number.

123130331012 is a deficient number, since it is larger than the sum of its proper divisors (111718816444).

123130331012 is a wasteful number, since it uses less digits than its factorization.

123130331012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28528907 (or 28528905 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 123130331012 its reverse (210133031321), we get a palindrome (333263362333).

The spelling of 123130331012 in words is "one hundred twenty-three billion, one hundred thirty million, three hundred thirty-one thousand, twelve".