231121330200312 has 64 divisors (see below), whose sum is σ = 578830380480000. Its totient is φ = 76903530497664.

The previous prime is 231121330200269. The next prime is 231121330200401. The reversal of 231121330200312 is 213002033121132.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 133107358 + ... + 134832530.

It is an arithmetic number, because the mean of its divisors is an integer number (9044224695000).

Almost surely, 2^{231121330200312} is an apocalyptic number.

It is an amenable number.

231121330200312 is an abundant number, since it is smaller than the sum of its proper divisors (347709050279688).

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

231121330200312 is a wasteful number, since it uses less digits than its factorization.

231121330200312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1735100 (or 1735096 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 231121330200312 its reverse (213002033121132), we get a palindrome (444123363321444).

The spelling of 231121330200312 in words is "two hundred thirty-one trillion, one hundred twenty-one billion, three hundred thirty million, two hundred thousand, three hundred twelve".