1013113120 has 24 divisors (see below), whose sum is σ = 2393480124. Its totient is φ = 405245184.

The previous prime is 1013113111. The next prime is 1013113121. The reversal of 1013113120 is 213113101.

It can be written as a sum of positive squares in 2 ways, for example, as 952833424 + 60279696 = 30868^2 + 7764^2 .

It is a super-2 number, since 2×1013113120² = 2052796387832268800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1013113120.

It is not an unprimeable number, because it can be changed into a prime (1013113121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3165819 + ... + 3166138.

Almost surely, 2^1013113120 is an apocalyptic number.

1013113120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1013113120 is an abundant number, since it is smaller than the sum of its proper divisors (1380367004).

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

1013113120 is an equidigital number, since it uses as much as digits as its factorization.

1013113120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6331972 (or 6331964 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 1013113120 is about 31829.4379466556. The cubic root of 1013113120 is about 1004.3520719925.

Adding to 1013113120 its reverse (213113101), we get a palindrome (1226226221).

The spelling of 1013113120 in words is "one billion, thirteen million, one hundred thirteen thousand, one hundred twenty".