1013013020 has 12 divisors (see below), whose sum is σ = 2127327384. Its totient is φ = 405205200.

The previous prime is 1013013013. The next prime is 1013013077. The reversal of 1013013020 is 203103101.

It is a junction number, because it is equal to n+sod(n) for n = 1013012992 and 1013013010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25325306 + ... + 25325345.

It is an arithmetic number, because the mean of its divisors is an integer number (177277282).

Almost surely, 2^1013013020 is an apocalyptic number.

1013013020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1013013020 is an abundant number, since it is smaller than the sum of its proper divisors (1114314364).

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

1013013020 is a wasteful number, since it uses less digits than its factorization.

1013013020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50650660 (or 50650658 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 1013013020 is about 31827.8654640867. The cubic root of 1013013020 is about 1004.3189927796.

Adding to 1013013020 its reverse (203103101), we get a palindrome (1216116121).

The spelling of 1013013020 in words is "one billion, thirteen million, thirteen thousand, twenty".