31231312213201 has 8 divisors (see below), whose sum is σ = 32953526272800. Its totient is φ = 29516944232160.

The previous prime is 31231312213183. The next prime is 31231312213229. The reversal of 31231312213201 is 10231221313213.

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

It is not a de Polignac number, because 31231312213201 - 2⁹ = 31231312212689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31231312213301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1961511460 + ... + 1961527381.

It is an arithmetic number, because the mean of its divisors is an integer number (4119190784100).

Almost surely, 2^{31231312213201} is an apocalyptic number.

It is an amenable number.

31231312213201 is a deficient number, since it is larger than the sum of its proper divisors (1722214059599).

31231312213201 is a wasteful number, since it uses less digits than its factorization.

31231312213201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3923039279.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 31231312213201 its reverse (10231221313213), we get a palindrome (41462533526414).

The spelling of 31231312213201 in words is "thirty-one trillion, two hundred thirty-one billion, three hundred twelve million, two hundred thirteen thousand, two hundred one".