31324444201 has 4 divisors (see below), whose sum is σ = 31417395412. Its totient is φ = 31231492992.

The previous prime is 31324444169. The next prime is 31324444247. The reversal of 31324444201 is 10244442313.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2924105625 + 28400338576 = 54075^2 + 168524^2 .

It is a cyclic number.

It is not a de Polignac number, because 31324444201 - 2⁵ = 31324444169 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31324444201.

It is not an unprimeable number, because it can be changed into a prime (31324444271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46475100 + ... + 46475773.

It is an arithmetic number, because the mean of its divisors is an integer number (7854348853).

Almost surely, 2^31324444201 is an apocalyptic number.

It is an amenable number.

31324444201 is a deficient number, since it is larger than the sum of its proper divisors (92951211).

31324444201 is an equidigital number, since it uses as much as digits as its factorization.

31324444201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92951210.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 31324444201 its reverse (10244442313), we get a palindrome (41568886514).

The spelling of 31324444201 in words is "thirty-one billion, three hundred twenty-four million, four hundred forty-four thousand, two hundred one".