20912368330 has 32 divisors (see below), whose sum is σ = 43032528000. Its totient is φ = 7167821760.

The previous prime is 20912368319. The next prime is 20912368333. The reversal of 20912368330 is 3386321902.

It is a self number, because there is not a number n which added to its sum of digits gives 20912368330.

It is not an unprimeable number, because it can be changed into a prime (20912368333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202240 + ... + 287620.

It is an arithmetic number, because the mean of its divisors is an integer number (1344766500).

Almost surely, 2^20912368330 is an apocalyptic number.

20912368330 is an abundant number, since it is smaller than the sum of its proper divisors (22120159670).

20912368330 is a wasteful number, since it uses less digits than its factorization.

20912368330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88894.

The product of its (nonzero) digits is 46656, while the sum is 37.

The spelling of 20912368330 in words is "twenty billion, nine hundred twelve million, three hundred sixty-eight thousand, three hundred thirty".