313111040 has 80 divisors (see below), whose sum is σ = 819054720. Its totient is φ = 113848320.

The previous prime is 313111037. The next prime is 313111061. The reversal of 313111040 is 40111313.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22601 + ... + 33719.

It is an arithmetic number, because the mean of its divisors is an integer number (10238184).

Almost surely, 2^313111040 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 313111040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (409527360).

313111040 is an abundant number, since it is smaller than the sum of its proper divisors (505943680).

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

313111040 is a wasteful number, since it uses less digits than its factorization.

313111040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11153 (or 11137 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 313111040 is about 17694.9439106203. The cubic root of 313111040 is about 679.0464142463.

Adding to 313111040 its reverse (40111313), we get a palindrome (353222353).

The spelling of 313111040 in words is "three hundred thirteen million, one hundred eleven thousand, forty".