30312002000 has 80 divisors (see below), whose sum is σ = 83765091072. Its totient is φ = 10392681600.

The previous prime is 30312001999. The next prime is 30312002029. The reversal of 30312002000 is 20021303.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1068572 + ... + 1096571.

Almost surely, 2^30312002000 is an apocalyptic number.

It is an amenable number.

30312002000 is an abundant number, since it is smaller than the sum of its proper divisors (53453089072).

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

30312002000 is a wasteful number, since it uses less digits than its factorization.

30312002000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2165173 (or 2165157 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 11.

Adding to 30312002000 its reverse (20021303), we get a palindrome (30332023303).

The spelling of 30312002000 in words is "thirty billion, three hundred twelve million, two thousand".