2331031202312 has 8 divisors (see below), whose sum is σ = 4370683504350. Its totient is φ = 1165515601152.

The previous prime is 2331031202299. The next prime is 2331031202327. The reversal of 2331031202312 is 2132021301332.

It can be written as a sum of positive squares in only one way, i.e., 1307304103876 + 1023727098436 = 1143374^2 + 1011794^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145689450137 + ... + 145689450152.

Almost surely, 2^{2331031202312} is an apocalyptic number.

It is an amenable number.

2331031202312 is a deficient number, since it is larger than the sum of its proper divisors (2039652302038).

2331031202312 is a wasteful number, since it uses less digits than its factorization.

2331031202312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291378900295 (or 291378900291 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 2331031202312 its reverse (2132021301332), we get a palindrome (4463052503644).

The spelling of 2331031202312 in words is "two trillion, three hundred thirty-one billion, thirty-one million, two hundred two thousand, three hundred twelve".