31013313201211 has 24 divisors (see below), whose sum is σ = 36075208229424. Its totient is φ = 26434669040640.

The previous prime is 31013313201203. The next prime is 31013313201257. The reversal of 31013313201211 is 11210231331013.

It is not a de Polignac number, because 31013313201211 - 2³ = 31013313201203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31013313201011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39872290 + ... + 40642663.

It is an arithmetic number, because the mean of its divisors is an integer number (1503133676226).

Almost surely, 2^{31013313201211} is an apocalyptic number.

31013313201211 is a deficient number, since it is larger than the sum of its proper divisors (5061895028213).

31013313201211 is a wasteful number, since it uses less digits than its factorization.

31013313201211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80515099 (or 80515080 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 31013313201211 its reverse (11210231331013), we get a palindrome (42223544532224).

The spelling of 31013313201211 in words is "thirty-one trillion, thirteen billion, three hundred thirteen million, two hundred one thousand, two hundred eleven".