31312010213 has 8 divisors (see below), whose sum is σ = 34510707840. Its totient is φ = 28172004480.

The previous prime is 31312010179. The next prime is 31312010221. The reversal of 31312010213 is 31201021313.

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 31312010213 - 2²⁶ = 31244901349 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31312010191 and 31312010200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31312010713) 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, 14671853 + ... + 14673986.

It is an arithmetic number, because the mean of its divisors is an integer number (4313838480).

Almost surely, 2^31312010213 is an apocalyptic number.

It is an amenable number.

31312010213 is a deficient number, since it is larger than the sum of its proper divisors (3198697627).

31312010213 is a wasteful number, since it uses less digits than its factorization.

31312010213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29345947.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 31312010213 its reverse (31201021313), we get a palindrome (62513031526).

The spelling of 31312010213 in words is "thirty-one billion, three hundred twelve million, ten thousand, two hundred thirteen".