20100233100 has 36 divisors (see below), whose sum is σ = 58156675304. Its totient is φ = 5360062080.

The previous prime is 20100233099. The next prime is 20100233113. The reversal of 20100233100 is 133200102.

It is a happy number.

It is a super-2 number, since 2×20100233100² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

20100233100 is a modest number, since divided by 233100 gives 20100 as remainder.

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, 33500089 + ... + 33500688.

Almost surely, 2^20100233100 is an apocalyptic number.

20100233100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20100233100 is an abundant number, since it is smaller than the sum of its proper divisors (38056442204).

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

20100233100 is a wasteful number, since it uses less digits than its factorization.

20100233100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67000794 (or 67000787 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 20100233100 its reverse (133200102), we get a palindrome (20233433202).

The spelling of 20100233100 in words is "twenty billion, one hundred million, two hundred thirty-three thousand, one hundred".