31311011013011 has 2 divisors, whose sum is σ = 31311011013012. Its totient is φ = 31311011013010.

The previous prime is 31311011012977. The next prime is 31311011013019. The reversal of 31311011013011 is 11031011011313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31311011013011 - 2¹⁴ = 31311010996627 is a prime.

It is a super-2 number, since 2×31311011013011² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31311011013019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15655505506505 + 15655505506506.

It is an arithmetic number, because the mean of its divisors is an integer number (15655505506506).

Almost surely, 2^{31311011013011} is an apocalyptic number.

31311011013011 is a deficient number, since it is larger than the sum of its proper divisors (1).

31311011013011 is an equidigital number, since it uses as much as digits as its factorization.

31311011013011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27, while the sum is 17.

Adding to 31311011013011 its reverse (11031011011313), we get a palindrome (42342022024324).

The spelling of 31311011013011 in words is "thirty-one trillion, three hundred eleven billion, eleven million, thirteen thousand, eleven".