23123131212312 has 96 divisors (see below), whose sum is σ = 63654474134160. Its totient is φ = 7581034656000.

The previous prime is 23123131212299. The next prime is 23123131212317. The reversal of 23123131212312 is 21321213132132.

23123131212312 is a `hidden beast` number, since 2 + 3 + 1 + 2 + 3 + 131 + 212 + 312 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23123131212317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 118402987 + ... + 118598117.

Almost surely, 2^{23123131212312} is an apocalyptic number.

It is an amenable number.

23123131212312 is an abundant number, since it is smaller than the sum of its proper divisors (40531342921848).

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

23123131212312 is a wasteful number, since it uses less digits than its factorization.

23123131212312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222185 (or 222178 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

Adding to 23123131212312 its reverse (21321213132132), we get a palindrome (44444344344444).

The spelling of 23123131212312 in words is "twenty-three trillion, one hundred twenty-three billion, one hundred thirty-one million, two hundred twelve thousand, three hundred twelve".