1013215100 has 36 divisors (see below), whose sum is σ = 2219248584. Its totient is φ = 401494080.

The previous prime is 1013215097. The next prime is 1013215123. The reversal of 1013215100 is 15123101.

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, 36647 + ... + 58046.

It is an arithmetic number, because the mean of its divisors is an integer number (61645794).

Almost surely, 2^1013215100 is an apocalyptic number.

1013215100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1013215100 is an abundant number, since it is smaller than the sum of its proper divisors (1206033484).

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

1013215100 is a wasteful number, since it uses less digits than its factorization.

1013215100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94814 (or 94807 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 1013215100 is about 31831.0398824795. The cubic root of 1013215100 is about 1004.3857702327.

Adding to 1013215100 its reverse (15123101), we get a palindrome (1028338201).

The spelling of 1013215100 in words is "one billion, thirteen million, two hundred fifteen thousand, one hundred".