31020223302313 has 8 divisors (see below), whose sum is σ = 35451863013632. Its totient is φ = 26588628400896.

The previous prime is 31020223302301. The next prime is 31020223302317. The reversal of 31020223302313 is 31320332202013.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31020223302313 is a prime.

It is a super-2 number, since 2×31020223302313² (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 (31020223302317) 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, 9705720 + ... + 12499657.

It is an arithmetic number, because the mean of its divisors is an integer number (4431482876704).

Almost surely, 2^{31020223302313} is an apocalyptic number.

It is an amenable number.

31020223302313 is a deficient number, since it is larger than the sum of its proper divisors (4431639711319).

31020223302313 is a wasteful number, since it uses less digits than its factorization.

31020223302313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22404951.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 31020223302313 its reverse (31320332202013), we get a palindrome (62340555504326).

The spelling of 31020223302313 in words is "thirty-one trillion, twenty billion, two hundred twenty-three million, three hundred two thousand, three hundred thirteen".