20440523100 has 36 divisors (see below), whose sum is σ = 59141247704. Its totient is φ = 5450806080.

The previous prime is 20440523099. The next prime is 20440523113. The reversal of 20440523100 is 132504402.

It is a super-2 number, since 2×20440523100² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 34067239 + ... + 34067838.

Almost surely, 2^20440523100 is an apocalyptic number.

20440523100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20440523100 is an abundant number, since it is smaller than the sum of its proper divisors (38700724604).

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

20440523100 is a wasteful number, since it uses less digits than its factorization.

20440523100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68135094 (or 68135087 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The spelling of 20440523100 in words is "twenty billion, four hundred forty million, five hundred twenty-three thousand, one hundred".