213120102330 has 24 divisors (see below), whose sum is σ = 554112266292. Its totient is φ = 56832027264.

The previous prime is 213120102277. The next prime is 213120102337. The reversal of 213120102330 is 33201021312.

213120102330 is a `hidden beast` number, since 2 + 131 + 201 + 0 + 2 + 330 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 184321672929 + 28798429401 = 429327^2 + 169701^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (213120102337) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1184000479 + ... + 1184000658.

Almost surely, 2^213120102330 is an apocalyptic number.

213120102330 is an abundant number, since it is smaller than the sum of its proper divisors (340992163962).

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

213120102330 is a wasteful number, since it uses less digits than its factorization.

213120102330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2368001150 (or 2368001147 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 213120102330 its reverse (33201021312), we get a palindrome (246321123642).

The spelling of 213120102330 in words is "two hundred thirteen billion, one hundred twenty million, one hundred two thousand, three hundred thirty".