1215013300 has 36 divisors (see below), whose sum is σ = 2640451660. Its totient is φ = 485291520.

The previous prime is 1215013291. The next prime is 1215013351. The reversal of 1215013300 is 33105121.

It can be written as a sum of positive squares in 6 ways, for example, as 507240484 + 707772816 = 22522^2 + 26604^2 .

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, 62332 + ... + 79468.

Almost surely, 2^1215013300 is an apocalyptic number.

1215013300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1215013300 is an abundant number, since it is smaller than the sum of its proper divisors (1425438360).

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

1215013300 is a wasteful number, since it uses less digits than its factorization.

1215013300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17860 (or 17853 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 1215013300 is about 34857.0408956354. The cubic root of 1215013300 is about 1067.0718848868.

Adding to 1215013300 its reverse (33105121), we get a palindrome (1248118421).

The spelling of 1215013300 in words is "one billion, two hundred fifteen million, thirteen thousand, three hundred".