213515030000 has 50 divisors (see below), whose sum is σ = 516941263344. Its totient is φ = 85406008000.

The previous prime is 213515029997. The next prime is 213515030023. The reversal of 213515030000 is 30515312.

It is a tau number, because it is divible by the number of its divisors (50).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 10665752 + ... + 10685751.

Almost surely, 2^213515030000 is an apocalyptic number.

213515030000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213515030000 is an abundant number, since it is smaller than the sum of its proper divisors (303426233344).

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

213515030000 is an equidigital number, since it uses as much as digits as its factorization.

213515030000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21351531 (or 21351510 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 20.

Adding to 213515030000 its reverse (30515312), we get a palindrome (213545545312).

The spelling of 213515030000 in words is "two hundred thirteen billion, five hundred fifteen million, thirty thousand".