313021111120 has 40 divisors (see below), whose sum is σ = 728387424864. Its totient is φ = 125102923392.

The previous prime is 313021111111. The next prime is 313021111159. The reversal of 313021111120 is 21111120313.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 313021111094 and 313021111103.

It is a congruent number.

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, 1553214 + ... + 1743133.

Almost surely, 2^313021111120 is an apocalyptic number.

It is an amenable number.

313021111120 is an abundant number, since it is smaller than the sum of its proper divisors (415366313744).

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

313021111120 is a wasteful number, since it uses less digits than its factorization.

313021111120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3297547 (or 3297541 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 313021111120 its reverse (21111120313), we get a palindrome (334132231433).

The spelling of 313021111120 in words is "three hundred thirteen billion, twenty-one million, one hundred eleven thousand, one hundred twenty".