31210320131201 has 16 divisors (see below), whose sum is σ = 32586785011200. Its totient is φ = 29835485241408.

The previous prime is 31210320131161. The next prime is 31210320131203. The reversal of 31210320131201 is 10213102301213.

It is a happy number.

It is not a de Polignac number, because 31210320131201 - 2³⁸ = 30935442224257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31210320131203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 266448035 + ... + 266565143.

It is an arithmetic number, because the mean of its divisors is an integer number (2036674063200).

Almost surely, 2^{31210320131201} is an apocalyptic number.

It is an amenable number.

31210320131201 is a deficient number, since it is larger than the sum of its proper divisors (1376464879999).

31210320131201 is a wasteful number, since it uses less digits than its factorization.

31210320131201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123968.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 31210320131201 its reverse (10213102301213), we get a palindrome (41423422432414).

The spelling of 31210320131201 in words is "thirty-one trillion, two hundred ten billion, three hundred twenty million, one hundred thirty-one thousand, two hundred one".