231323130122012 has 24 divisors (see below), whose sum is σ = 405501154348752. Its totient is φ = 115465660358400.

The previous prime is 231323130122009. The next prime is 231323130122023. The reversal of 231323130122012 is 210221031323132.

It is a congruent number.

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, 421493462 + ... + 422041922.

It is an arithmetic number, because the mean of its divisors is an integer number (16895881431198).

Almost surely, 2^{231323130122012} is an apocalyptic number.

It is an amenable number.

231323130122012 is a deficient number, since it is larger than the sum of its proper divisors (174178024226740).

231323130122012 is a wasteful number, since it uses less digits than its factorization.

231323130122012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726869 (or 726867 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 231323130122012 its reverse (210221031323132), we get a palindrome (441544161445144).

The spelling of 231323130122012 in words is "two hundred thirty-one trillion, three hundred twenty-three billion, one hundred thirty million, one hundred twenty-two thousand, twelve".