31220102000213 has 16 divisors (see below), whose sum is σ = 36833633786880. Its totient is φ = 25895068848000.

The previous prime is 31220102000209. The next prime is 31220102000257. The reversal of 31220102000213 is 31200020102213.

It is a cyclic number.

It is not a de Polignac number, because 31220102000213 - 2² = 31220102000209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31220102000191 and 31220102000200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31220102000713) 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, 1820738 + ... + 8108963.

It is an arithmetic number, because the mean of its divisors is an integer number (2302102111680).

Almost surely, 2^{31220102000213} is an apocalyptic number.

It is an amenable number.

31220102000213 is a deficient number, since it is larger than the sum of its proper divisors (5613531786667).

31220102000213 is a wasteful number, since it uses less digits than its factorization.

31220102000213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9944228.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 31220102000213 its reverse (31200020102213), we get a palindrome (62420122102426).

It can be divided in two parts, 31220102000 and 213, that added together give a palindrome (31220102213).

The spelling of 31220102000213 in words is "thirty-one trillion, two hundred twenty billion, one hundred two million, two hundred thirteen", and thus it is an aban number.