20320435262100 has 72 divisors (see below), whose sum is σ = 62252251100928. Its totient is φ = 5100030809600.

The previous prime is 20320435262089. The next prime is 20320435262213. The reversal of 20320435262100 is 126253402302.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1992194436 + ... + 1992204635.

It is an arithmetic number, because the mean of its divisors is an integer number (864614598624).

Almost surely, 2^{20320435262100} is an apocalyptic number.

20320435262100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20320435262100 is an abundant number, since it is smaller than the sum of its proper divisors (41931815838828).

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

20320435262100 is a wasteful number, since it uses less digits than its factorization.

20320435262100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3984399105 (or 3984399098 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 20320435262100 its reverse (126253402302), we get a palindrome (20446688664402).

The spelling of 20320435262100 in words is "twenty trillion, three hundred twenty billion, four hundred thirty-five million, two hundred sixty-two thousand, one hundred".