31220330200213 has 24 divisors (see below), whose sum is σ = 39623246134976. Its totient is φ = 24076730684160.

The previous prime is 31220330200183. The next prime is 31220330200219. The reversal of 31220330200213 is 31200203302213.

It is not a de Polignac number, because 31220330200213 - 2⁹ = 31220330199701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31220330200219) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 189917295 + ... + 190081612.

Almost surely, 2^{31220330200213} is an apocalyptic number.

It is an amenable number.

31220330200213 is a deficient number, since it is larger than the sum of its proper divisors (8402915934763).

31220330200213 is a wasteful number, since it uses less digits than its factorization.

31220330200213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379999033 (or 379999022 counting only the distinct ones).

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

Adding to 31220330200213 its reverse (31200203302213), we get a palindrome (62420533502426).

The spelling of 31220330200213 in words is "thirty-one trillion, two hundred twenty billion, three hundred thirty million, two hundred thousand, two hundred thirteen".