20126326100 has 18 divisors (see below), whose sum is σ = 43674127854. Its totient is φ = 8050530400.

The previous prime is 20126326079. The next prime is 20126326139. The reversal of 20126326100 is 162362102.

It can be written as a sum of positive squares in 3 ways, for example, as 3525034384 + 16601291716 = 59372^2 + 128846^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 100631531 + ... + 100631730.

Almost surely, 2^20126326100 is an apocalyptic number.

20126326100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20126326100 is an abundant number, since it is smaller than the sum of its proper divisors (23547801754).

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

20126326100 is a wasteful number, since it uses less digits than its factorization.

20126326100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201263275 (or 201263268 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 20126326100 its reverse (162362102), we get a palindrome (20288688202).

The spelling of 20126326100 in words is "twenty billion, one hundred twenty-six million, three hundred twenty-six thousand, one hundred".