31341112131 has 32 divisors (see below), whose sum is σ = 49502085120. Its totient is φ = 17266509216.

The previous prime is 31341112109. The next prime is 31341112133. The reversal of 31341112131 is 13121114313.

It is not a de Polignac number, because 31341112131 - 2⁶ = 31341112067 is a prime.

It is a super-2 number, since 2×31341112131² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 31341112098 and 31341112107.

It is not an unprimeable number, because it can be changed into a prime (31341112133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 170841 + ... + 303098.

It is an arithmetic number, because the mean of its divisors is an integer number (1546940160).

Almost surely, 2^31341112131 is an apocalyptic number.

31341112131 is a deficient number, since it is larger than the sum of its proper divisors (18160972989).

31341112131 is a wasteful number, since it uses less digits than its factorization.

31341112131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474063.

The product of its digits is 216, while the sum is 21.

Adding to 31341112131 its reverse (13121114313), we get a palindrome (44462226444).

The spelling of 31341112131 in words is "thirty-one billion, three hundred forty-one million, one hundred twelve thousand, one hundred thirty-one".