2331131313131 has 16 divisors (see below), whose sum is σ = 2343335279040. Its totient is φ = 2318960655360.

The previous prime is 2331131313067. The next prime is 2331131313139. The reversal of 2331131313131 is 1313131311332.

It is a cyclic number.

It is not a de Polignac number, because 2331131313131 - 2⁶ = 2331131313067 is a prime.

It is a super-2 number, since 2×2331131313131² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2331131313131.

It is not an unprimeable number, because it can be changed into a prime (2331131313139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 469132415 + ... + 469137383.

It is an arithmetic number, because the mean of its divisors is an integer number (146458454940).

Almost surely, 2^{2331131313131} is an apocalyptic number.

2331131313131 is a deficient number, since it is larger than the sum of its proper divisors (12203965909).

2331131313131 is a wasteful number, since it uses less digits than its factorization.

2331131313131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7846.

The product of its digits is 1458, while the sum is 26.

Adding to 2331131313131 its reverse (1313131311332), we get a palindrome (3644262624463).

The spelling of 2331131313131 in words is "two trillion, three hundred thirty-one billion, one hundred thirty-one million, three hundred thirteen thousand, one hundred thirty-one".