31122231102213 has 16 divisors (see below), whose sum is σ = 41820952536000. Its totient is φ = 20585891555840.

The previous prime is 31122231102203. The next prime is 31122231102239. The reversal of 31122231102213 is 31220113222113.

It is a cyclic number.

It is not a de Polignac number, because 31122231102213 - 2⁵ = 31122231102181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31122231102203) 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, 5371788 + ... + 9544661.

It is an arithmetic number, because the mean of its divisors is an integer number (2613809533500).

Almost surely, 2^{31122231102213} is an apocalyptic number.

It is an amenable number.

31122231102213 is a deficient number, since it is larger than the sum of its proper divisors (10698721433787).

31122231102213 is a wasteful number, since it uses less digits than its factorization.

31122231102213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14921892.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 31122231102213 its reverse (31220113222113), we get a palindrome (62342344324326).

The spelling of 31122231102213 in words is "thirty-one trillion, one hundred twenty-two billion, two hundred thirty-one million, one hundred two thousand, two hundred thirteen".