1013004520 has 32 divisors (see below), whose sum is σ = 2486466720. Its totient is φ = 368365120.

The previous prime is 1013004457. The next prime is 1013004533. The reversal of 1013004520 is 254003101.

It is a junction number, because it is equal to n+sod(n) for n = 1013004494 and 1013004503.

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, 1150702 + ... + 1151581.

It is an arithmetic number, because the mean of its divisors is an integer number (77702085).

Almost surely, 2^1013004520 is an apocalyptic number.

1013004520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1013004520 is an abundant number, since it is smaller than the sum of its proper divisors (1473462200).

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

1013004520 is a wasteful number, since it uses less digits than its factorization.

1013004520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2302305 (or 2302301 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1013004520 is about 31827.7319330172. The cubic root of 1013004520 is about 1004.3161837551.

Adding to 1013004520 its reverse (254003101), we get a palindrome (1267007621).

The spelling of 1013004520 in words is "one billion, thirteen million, four thousand, five hundred twenty".