31031013002311 has 12 divisors (see below), whose sum is σ = 36098917277400. Its totient is φ = 26596820085360.

The previous prime is 31031013002287. The next prime is 31031013002329. The reversal of 31031013002311 is 11320031013013.

It is not a de Polignac number, because 31031013002311 - 2¹¹ = 31031013000263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31031013002111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13073005 + ... + 15263206.

It is an arithmetic number, because the mean of its divisors is an integer number (3008243106450).

Almost surely, 2^{31031013002311} is an apocalyptic number.

31031013002311 is a deficient number, since it is larger than the sum of its proper divisors (5067904275089).

31031013002311 is a wasteful number, since it uses less digits than its factorization.

31031013002311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28358574 (or 28358567 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 31031013002311 its reverse (11320031013013), we get a palindrome (42351044015324).

The spelling of 31031013002311 in words is "thirty-one trillion, thirty-one billion, thirteen million, two thousand, three hundred eleven".