31030112313213 has 16 divisors (see below), whose sum is σ = 44855092665600. Its totient is φ = 18967296320064.

The previous prime is 31030112313209. The next prime is 31030112313229. The reversal of 31030112313213 is 31231321103013.

It is not a de Polignac number, because 31030112313213 - 2² = 31030112313209 is a prime.

It is a super-2 number, since 2×31030112313213² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31030112313283) 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, 2669940181 + ... + 2669951802.

It is an arithmetic number, because the mean of its divisors is an integer number (2803443291600).

Almost surely, 2^{31030112313213} is an apocalyptic number.

It is an amenable number.

31030112313213 is a deficient number, since it is larger than the sum of its proper divisors (13824980352387).

31030112313213 is a wasteful number, since it uses less digits than its factorization.

31030112313213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5339892148.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 31030112313213 its reverse (31231321103013), we get a palindrome (62261433416226).

The spelling of 31030112313213 in words is "thirty-one trillion, thirty billion, one hundred twelve million, three hundred thirteen thousand, two hundred thirteen".