31294771201 has 4 divisors (see below), whose sum is σ = 31295579904. Its totient is φ = 31293962500.

The previous prime is 31294771169. The next prime is 31294771213. The reversal of 31294771201 is 10217749213.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31294771201 - 2⁵ = 31294771169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31294771241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343225 + ... + 424726.

It is an arithmetic number, because the mean of its divisors is an integer number (7823894976).

Almost surely, 2^31294771201 is an apocalyptic number.

It is an amenable number.

31294771201 is a deficient number, since it is larger than the sum of its proper divisors (808703).

31294771201 is an equidigital number, since it uses as much as digits as its factorization.

31294771201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808702.

The product of its (nonzero) digits is 21168, while the sum is 37.

The spelling of 31294771201 in words is "thirty-one billion, two hundred ninety-four million, seven hundred seventy-one thousand, two hundred one".