1013503100 has 36 divisors (see below), whose sum is σ = 2240809704. Its totient is φ = 397750080.

The previous prime is 1013503079. The next prime is 1013503151. The reversal of 1013503100 is 13053101.

It is a super-2 number, since 2×1013503100² = 2054377067419220000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90314 + ... + 100913.

It is an arithmetic number, because the mean of its divisors is an integer number (62244714).

Almost surely, 2^1013503100 is an apocalyptic number.

1013503100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1013503100 is an abundant number, since it is smaller than the sum of its proper divisors (1227306604).

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

1013503100 is a wasteful number, since it uses less digits than its factorization.

1013503100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191294 (or 191287 counting only the distinct ones).

The product of its (nonzero) digits is 45, while the sum is 14.

The square root of 1013503100 is about 31835.5634471891. The cubic root of 1013503100 is about 1004.4809246572.

Adding to 1013503100 its reverse (13053101), we get a palindrome (1026556201).

The spelling of 1013503100 in words is "one billion, thirteen million, five hundred three thousand, one hundred".