31113002211131 has 2 divisors, whose sum is σ = 31113002211132. Its totient is φ = 31113002211130.

The previous prime is 31113002211121. The next prime is 31113002211191. The reversal of 31113002211131 is 13111220031113.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31113002211131 is a prime.

It is a super-2 number, since 2×31113002211131² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31113002211121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15556501105565 + 15556501105566.

It is an arithmetic number, because the mean of its divisors is an integer number (15556501105566).

Almost surely, 2^{31113002211131} is an apocalyptic number.

31113002211131 is a deficient number, since it is larger than the sum of its proper divisors (1).

31113002211131 is an equidigital number, since it uses as much as digits as its factorization.

31113002211131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 31113002211131 its reverse (13111220031113), we get a palindrome (44224222242244).

The spelling of 31113002211131 in words is "thirty-one trillion, one hundred thirteen billion, two million, two hundred eleven thousand, one hundred thirty-one".