31311130132311 has 16 divisors (see below), whose sum is σ = 43095085360128. Its totient is φ = 20200636972800.

The previous prime is 31311130132309. The next prime is 31311130132313. The reversal of 31311130132311 is 11323103111313.

It is an interprime number because it is at equal distance from previous prime (31311130132309) and next prime (31311130132313).

It is not a de Polignac number, because 31311130132311 - 2¹ = 31311130132309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31311130132313) 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, 24003175 + ... + 25273991.

It is an arithmetic number, because the mean of its divisors is an integer number (2693442835008).

Almost surely, 2^{31311130132311} is an apocalyptic number.

31311130132311 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

31311130132311 is a deficient number, since it is larger than the sum of its proper divisors (11783955227817).

31311130132311 is a wasteful number, since it uses less digits than its factorization.

31311130132311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1535782.

The product of its (nonzero) digits is 486, while the sum is 24.

Adding to 31311130132311 its reverse (11323103111313), we get a palindrome (42634233243624).

The spelling of 31311130132311 in words is "thirty-one trillion, three hundred eleven billion, one hundred thirty million, one hundred thirty-two thousand, three hundred eleven".