31215300000353 has 4 divisors (see below), whose sum is σ = 35674628571840. Its totient is φ = 26755971428868.

The previous prime is 31215300000319. The next prime is 31215300000413. The reversal of 31215300000353 is 35300000351213.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31215300000353 - 2²⁰ = 31215298951777 is a prime.

It is a super-2 number, since 2×31215300000353² (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 (31215300000853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2229664285733 + ... + 2229664285746.

It is an arithmetic number, because the mean of its divisors is an integer number (8918657142960).

Almost surely, 2^{31215300000353} is an apocalyptic number.

It is an amenable number.

31215300000353 is a deficient number, since it is larger than the sum of its proper divisors (4459328571487).

31215300000353 is an equidigital number, since it uses as much as digits as its factorization.

31215300000353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4459328571486.

The product of its (nonzero) digits is 4050, while the sum is 26.

Adding to 31215300000353 its reverse (35300000351213), we get a palindrome (66515300351566).

The spelling of 31215300000353 in words is "thirty-one trillion, two hundred fifteen billion, three hundred million, three hundred fifty-three", and thus it is an aban number.