20732310930 has 16 divisors (see below), whose sum is σ = 49757546304. Its totient is φ = 5528616240.

The previous prime is 20732310901. The next prime is 20732310931. The reversal of 20732310930 is 3901323702.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 691077031 = 20732310930 / (2 + 0 + 7 + 3 + 2 + 3 + 1 + 0 + 9 + 3 + 0).

It is not an unprimeable number, because it can be changed into a prime (20732310931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 345538486 + ... + 345538545.

It is an arithmetic number, because the mean of its divisors is an integer number (3109846644).

Almost surely, 2^20732310930 is an apocalyptic number.

20732310930 is an abundant number, since it is smaller than the sum of its proper divisors (29025235374).

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

20732310930 is a wasteful number, since it uses less digits than its factorization.

20732310930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691077041.

The product of its (nonzero) digits is 6804, while the sum is 30.

The spelling of 20732310930 in words is "twenty billion, seven hundred thirty-two million, three hundred ten thousand, nine hundred thirty".