31220314401 has 8 divisors (see below), whose sum is σ = 41745011040. Its totient is φ = 20754580352.

The previous prime is 31220314381. The next prime is 31220314439. The reversal of 31220314401 is 10441302213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31220314401 - 2⁷ = 31220314273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31220314451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14739411 + ... + 14741528.

It is an arithmetic number, because the mean of its divisors is an integer number (5218126380).

Almost surely, 2^31220314401 is an apocalyptic number.

It is an amenable number.

31220314401 is a deficient number, since it is larger than the sum of its proper divisors (10524696639).

31220314401 is a wasteful number, since it uses less digits than its factorization.

31220314401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29481295.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 31220314401 its reverse (10441302213), we get a palindrome (41661616614).

The spelling of 31220314401 in words is "thirty-one billion, two hundred twenty million, three hundred fourteen thousand, four hundred one".