20331230100 has 72 divisors (see below), whose sum is σ = 60853500960. Its totient is φ = 5234705280.

The previous prime is 20331230077. The next prime is 20331230107. The reversal of 20331230100 is 103213302.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20331230100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20331230107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1159762 + ... + 1177161.

Almost surely, 2^20331230100 is an apocalyptic number.

20331230100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20331230100 is an abundant number, since it is smaller than the sum of its proper divisors (40522270860).

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

20331230100 is a wasteful number, since it uses less digits than its factorization.

20331230100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2336969 (or 2336962 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 20331230100 its reverse (103213302), we get a palindrome (20434443402).

The spelling of 20331230100 in words is "twenty billion, three hundred thirty-one million, two hundred thirty thousand, one hundred".