313120213240 has 64 divisors (see below), whose sum is σ = 728241212160. Its totient is φ = 121042114560.

The previous prime is 313120213177. The next prime is 313120213247. The reversal of 313120213240 is 42312021313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313120213247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 736672 + ... + 1081168.

It is an arithmetic number, because the mean of its divisors is an integer number (11378768940).

Almost surely, 2^313120213240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 313120213240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (364120606080).

313120213240 is an abundant number, since it is smaller than the sum of its proper divisors (415120998920).

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

313120213240 is a wasteful number, since it uses less digits than its factorization.

313120213240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345272 (or 345268 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 313120213240 its reverse (42312021313), we get a palindrome (355432234553).

The spelling of 313120213240 in words is "three hundred thirteen billion, one hundred twenty million, two hundred thirteen thousand, two hundred forty".