10021515030 has 24 divisors (see below), whose sum is σ = 26055939312. Its totient is φ = 2672403984.

The previous prime is 10021515001. The next prime is 10021515037. The reversal of 10021515030 is 3051512001.

10021515030 is a `hidden beast` number, since 10 + 0 + 2 + 151 + 503 + 0 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 10021514994 and 10021515012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021515037) 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, 55674994 + ... + 55675173.

It is an arithmetic number, because the mean of its divisors is an integer number (1085664138).

Almost surely, 2^10021515030 is an apocalyptic number.

10021515030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10021515030 is an abundant number, since it is smaller than the sum of its proper divisors (16034424282).

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

10021515030 is a wasteful number, since it uses less digits than its factorization.

10021515030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111350180 (or 111350177 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The spelling of 10021515030 in words is "ten billion, twenty-one million, five hundred fifteen thousand, thirty".