31311442201 has 16 divisors (see below), whose sum is σ = 34048022400. Its totient is φ = 28622740608.

The previous prime is 31311442177. The next prime is 31311442223. The reversal of 31311442201 is 10224411313.

It is a cyclic number.

It is not a de Polignac number, because 31311442201 - 2²⁷ = 31177224473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31311442241) 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 15 ways as a sum of consecutive naturals, for example, 725260 + ... + 767218.

It is an arithmetic number, because the mean of its divisors is an integer number (2128001400).

Almost surely, 2^31311442201 is an apocalyptic number.

It is an amenable number.

31311442201 is a deficient number, since it is larger than the sum of its proper divisors (2736580199).

31311442201 is a wasteful number, since it uses less digits than its factorization.

31311442201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42528.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 31311442201 its reverse (10224411313), we get a palindrome (41535853514).

The spelling of 31311442201 in words is "thirty-one billion, three hundred eleven million, four hundred forty-two thousand, two hundred one".