31103322131311 has 2 divisors, whose sum is σ = 31103322131312. Its totient is φ = 31103322131310.

The previous prime is 31103322131279. The next prime is 31103322131393. The reversal of 31103322131311 is 11313122330113.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31103322131311 - 2⁵ = 31103322131279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31103322135311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15551661065655 + 15551661065656.

It is an arithmetic number, because the mean of its divisors is an integer number (15551661065656).

Almost surely, 2^{31103322131311} is an apocalyptic number.

31103322131311 is a deficient number, since it is larger than the sum of its proper divisors (1).

31103322131311 is an equidigital number, since it uses as much as digits as its factorization.

31103322131311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 31103322131311 its reverse (11313122330113), we get a palindrome (42416444461424).

The spelling of 31103322131311 in words is "thirty-one trillion, one hundred three billion, three hundred twenty-two million, one hundred thirty-one thousand, three hundred eleven".