313024220040 has 64 divisors (see below), whose sum is σ = 1073225900160. Its totient is φ = 71548392960.

The previous prime is 313024220039. The next prime is 313024220057. The reversal of 313024220040 is 40022420313.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 313024219989 and 313024220016.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186323101 + ... + 186324780.

It is an arithmetic number, because the mean of its divisors is an integer number (16769154690).

Almost surely, 2^313024220040 is an apocalyptic number.

313024220040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

313024220040 is an abundant number, since it is smaller than the sum of its proper divisors (760201680120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

313024220040 is a wasteful number, since it uses less digits than its factorization.

313024220040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372647902 (or 372647898 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 313024220040 its reverse (40022420313), we get a palindrome (353046640353).

The spelling of 313024220040 in words is "three hundred thirteen billion, twenty-four million, two hundred twenty thousand, forty".