31365405011 has 6 divisors (see below), whose sum is σ = 31614337620. Its totient is φ = 31118417316.

The previous prime is 31365404971. The next prime is 31365405031. The reversal of 31365405011 is 11050456313.

It is not a de Polignac number, because 31365405011 - 2²² = 31361210707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31365405031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 956201 + ... + 988458.

It is an arithmetic number, because the mean of its divisors is an integer number (5269056270).

Almost surely, 2^31365405011 is an apocalyptic number.

31365405011 is a deficient number, since it is larger than the sum of its proper divisors (248932609).

31365405011 is an equidigital number, since it uses as much as digits as its factorization.

31365405011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1944913 (or 1944786 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The spelling of 31365405011 in words is "thirty-one billion, three hundred sixty-five million, four hundred five thousand, eleven".