1013113020 has 48 divisors (see below), whose sum is σ = 2890248480. Its totient is φ = 265065216.

The previous prime is 1013113009. The next prime is 1013113027. The reversal of 1013113020 is 203113101.

1013113020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1013112987 and 1013113005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013113027) 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, 156115 + ... + 162474.

It is an arithmetic number, because the mean of its divisors is an integer number (60213510).

Almost surely, 2^1013113020 is an apocalyptic number.

1013113020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1013113020 is an abundant number, since it is smaller than the sum of its proper divisors (1877135460).

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

1013113020 is a wasteful number, since it uses less digits than its factorization.

1013113020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318654 (or 318652 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 1013113020 is about 31829.4363757827. The cubic root of 1013113020 is about 1004.3520389474.

Adding to 1013113020 its reverse (203113101), we get a palindrome (1216226121).

The spelling of 1013113020 in words is "one billion, thirteen million, one hundred thirteen thousand, twenty".