313020031 has 8 divisors (see below), whose sum is σ = 335158560. Its totient is φ = 291295488.

The previous prime is 313020023. The next prime is 313020049. The reversal of 313020031 is 130020313.

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 313020031 - 2³ = 313020023 is a prime.

It is a super-2 number, since 2×313020031² = 195963079614481922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313019993 and 313020020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313020011) 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, 101931 + ... + 104956.

It is an arithmetic number, because the mean of its divisors is an integer number (41894820).

Almost surely, 2^313020031 is an apocalyptic number.

313020031 is a deficient number, since it is larger than the sum of its proper divisors (22138529).

313020031 is a wasteful number, since it uses less digits than its factorization.

313020031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206993.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 313020031 is about 17692.3721134279. The cubic root of 313020031 is about 678.9806172226.

Adding to 313020031 its reverse (130020313), we get a palindrome (443040344).

The spelling of 313020031 in words is "three hundred thirteen million, twenty thousand, thirty-one".