31020003112313 has 8 divisors (see below), whose sum is σ = 31032503631360. Its totient is φ = 31007503092960.

The previous prime is 31020003112309. The next prime is 31020003112337. The reversal of 31020003112313 is 31321130002013.

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 31020003112313 - 2² = 31020003112309 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31020003112393) 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, 170199728 + ... + 170381886.

It is an arithmetic number, because the mean of its divisors is an integer number (3879062953920).

Almost surely, 2^{31020003112313} is an apocalyptic number.

It is an amenable number.

31020003112313 is a deficient number, since it is larger than the sum of its proper divisors (12500519047).

31020003112313 is a wasteful number, since it uses less digits than its factorization.

31020003112313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249847.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 31020003112313 its reverse (31321130002013), we get a palindrome (62341133114326).

The spelling of 31020003112313 in words is "thirty-one trillion, twenty billion, three million, one hundred twelve thousand, three hundred thirteen".