31341303131 has 2 divisors, whose sum is σ = 31341303132. Its totient is φ = 31341303130.

The previous prime is 31341303109. The next prime is 31341303137. The reversal of 31341303131 is 13130314313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31341303131 - 2³⁰ = 30267561307 is a prime.

It is a super-2 number, since 2×31341303131² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31341303097 and 31341303106.

It is not a weakly prime, because it can be changed into another prime (31341303137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15670651565 + 15670651566.

It is an arithmetic number, because the mean of its divisors is an integer number (15670651566).

Almost surely, 2^31341303131 is an apocalyptic number.

31341303131 is a deficient number, since it is larger than the sum of its proper divisors (1).

31341303131 is an equidigital number, since it uses as much as digits as its factorization.

31341303131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 31341303131 its reverse (13130314313), we get a palindrome (44471617444).

The spelling of 31341303131 in words is "thirty-one billion, three hundred forty-one million, three hundred three thousand, one hundred thirty-one".