30136321920 has 64 divisors (see below), whose sum is σ = 96059532240. Its totient is φ = 8036352000.

The previous prime is 30136321867. The next prime is 30136321973. The reversal of 30136321920 is 2912363103.

It is an interprime number because it is at equal distance from previous prime (30136321867) and next prime (30136321973).

It is a tau number, because it is divible by the number of its divisors (64).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7846081 + ... + 7849920.

Almost surely, 2^30136321920 is an apocalyptic number.

30136321920 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30136321920 is an abundant number, since it is smaller than the sum of its proper divisors (65923210320).

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

30136321920 is a wasteful number, since it uses less digits than its factorization.

30136321920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15696023 (or 15696011 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 30.

The spelling of 30136321920 in words is "thirty billion, one hundred thirty-six million, three hundred twenty-one thousand, nine hundred twenty".