20331120100 has 36 divisors (see below), whose sum is σ = 44134439104. Its totient is φ = 8129515680.

The previous prime is 20331120091. The next prime is 20331120113. The reversal of 20331120100 is 102113302.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 253489 + ... + 323911.

Almost surely, 2^20331120100 is an apocalyptic number.

20331120100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20331120100 is an abundant number, since it is smaller than the sum of its proper divisors (23803319004).

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

20331120100 is a wasteful number, since it uses less digits than its factorization.

20331120100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73324 (or 73317 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 20331120100 its reverse (102113302), we get a palindrome (20433233402).

The spelling of 20331120100 in words is "twenty billion, three hundred thirty-one million, one hundred twenty thousand, one hundred".