23131333113012 has 18 divisors (see below), whose sum is σ = 58470869813538. Its totient is φ = 7710444370992.

The previous prime is 23131333113001. The next prime is 23131333113071. The reversal of 23131333113012 is 21031133313132.

23131333113012 is a `hidden beast` number, since 2 + 3 + 1 + 313 + 3 + 311 + 30 + 1 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 23072324929956 + 59008183056 = 4803366^2 + 242916^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 321268515423 + ... + 321268515494.

Almost surely, 2^{23131333113012} is an apocalyptic number.

It is an amenable number.

23131333113012 is an abundant number, since it is smaller than the sum of its proper divisors (35339536700526).

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

23131333113012 is a wasteful number, since it uses less digits than its factorization.

23131333113012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642537030927 (or 642537030922 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 27.

Adding to 23131333113012 its reverse (21031133313132), we get a palindrome (44162466426144).

The spelling of 23131333113012 in words is "twenty-three trillion, one hundred thirty-one billion, three hundred thirty-three million, one hundred thirteen thousand, twelve".