20300030988 has 12 divisors (see below), whose sum is σ = 47366739000. Its totient is φ = 6766676992.

The previous prime is 20300030983. The next prime is 20300030999. The reversal of 20300030988 is 88903000302.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×20300030988² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20300030981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 845834613 + ... + 845834636.

It is an arithmetic number, because the mean of its divisors is an integer number (3947228250).

Almost surely, 2^20300030988 is an apocalyptic number.

It is an amenable number.

20300030988 is an abundant number, since it is smaller than the sum of its proper divisors (27066708012).

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

20300030988 is a wasteful number, since it uses less digits than its factorization.

20300030988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1691669256 (or 1691669254 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The spelling of 20300030988 in words is "twenty billion, three hundred million, thirty thousand, nine hundred eighty-eight".