20102132100 has 36 divisors (see below), whose sum is σ = 58162169744. Its totient is φ = 5360568480.

The previous prime is 20102132081. The next prime is 20102132119. The reversal of 20102132100 is 123120102.

It is an interprime number because it is at equal distance from previous prime (20102132081) and next prime (20102132119).

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

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, 33503254 + ... + 33503853.

Almost surely, 2^20102132100 is an apocalyptic number.

20102132100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20102132100 is an abundant number, since it is smaller than the sum of its proper divisors (38060037644).

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

20102132100 is a wasteful number, since it uses less digits than its factorization.

20102132100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67007124 (or 67007117 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 20102132100 its reverse (123120102), we get a palindrome (20225252202).

The spelling of 20102132100 in words is "twenty billion, one hundred two million, one hundred thirty-two thousand, one hundred".