31201330213201 has 16 divisors (see below), whose sum is σ = 34271841623040. Its totient is φ = 28273679240400.

The previous prime is 31201330213189. The next prime is 31201330213243. The reversal of 31201330213201 is 10231203310213.

It is a cyclic number.

It is not a de Polignac number, because 31201330213201 - 2⁷ = 31201330213073 is a prime.

It is a super-2 number, since 2×31201330213201² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31201330217201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49043526 + ... + 49675648.

It is an arithmetic number, because the mean of its divisors is an integer number (2141990101440).

Almost surely, 2^{31201330213201} is an apocalyptic number.

It is an amenable number.

31201330213201 is a deficient number, since it is larger than the sum of its proper divisors (3070511409839).

31201330213201 is a wasteful number, since it uses less digits than its factorization.

31201330213201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745116.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 31201330213201 its reverse (10231203310213), we get a palindrome (41432533523414).

The spelling of 31201330213201 in words is "thirty-one trillion, two hundred one billion, three hundred thirty million, two hundred thirteen thousand, two hundred one".