31322323201 has 4 divisors (see below), whose sum is σ = 33731732692. Its totient is φ = 28912913712.

The previous prime is 31322323189. The next prime is 31322323231. The reversal of 31322323201 is 10232322313.

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 1911788176 + 29410535025 = 43724^2 + 171495^2 .

It is a cyclic number.

It is not a de Polignac number, because 31322323201 - 2¹¹ = 31322321153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31322323231) 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 3 ways as a sum of consecutive naturals, for example, 1204704726 + ... + 1204704751.

It is an arithmetic number, because the mean of its divisors is an integer number (8432933173).

Almost surely, 2^31322323201 is an apocalyptic number.

It is an amenable number.

31322323201 is a deficient number, since it is larger than the sum of its proper divisors (2409409491).

31322323201 is a wasteful number, since it uses less digits than its factorization.

31322323201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2409409490.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 31322323201 its reverse (10232322313), we get a palindrome (41554645514).

The spelling of 31322323201 in words is "thirty-one billion, three hundred twenty-two million, three hundred twenty-three thousand, two hundred one".