12135615330 has 32 divisors (see below), whose sum is σ = 29133260928. Its totient is φ = 3235299200.

The previous prime is 12135615319. The next prime is 12135615337. The reversal of 12135615330 is 3351653121.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (12135615337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64315 + ... + 168545.

It is an arithmetic number, because the mean of its divisors is an integer number (910414404).

Almost surely, 2^12135615330 is an apocalyptic number.

12135615330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12135615330 is an abundant number, since it is smaller than the sum of its proper divisors (16997645598).

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

12135615330 is a wasteful number, since it uses less digits than its factorization.

12135615330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108122.

The product of its (nonzero) digits is 8100, while the sum is 30.

The spelling of 12135615330 in words is "twelve billion, one hundred thirty-five million, six hundred fifteen thousand, three hundred thirty".