31235453213 has 8 divisors (see below), whose sum is σ = 31658623320. Its totient is φ = 30814516800.

The previous prime is 31235453191. The next prime is 31235453257.

31235453213 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 4014743044 + 27220710169 = 63362^2 + 164987^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31235453213 - 2¹⁰ = 31235452189 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31235453213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31235453273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 530258 + ... + 586211.

It is an arithmetic number, because the mean of its divisors is an integer number (3957327915).

Almost surely, 2^31235453213 is an apocalyptic number.

It is an amenable number.

31235453213 is a deficient number, since it is larger than the sum of its proper divisors (423170107).

31235453213 is a wasteful number, since it uses less digits than its factorization.

31235453213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116847.

The product of its digits is 32400, while the sum is 32.

The spelling of 31235453213 in words is "thirty-one billion, two hundred thirty-five million, four hundred fifty-three thousand, two hundred thirteen".