20032102055100 has 72 divisors (see below), whose sum is σ = 57960990727920. Its totient is φ = 5341760967680.

The previous prime is 20032102055093. The next prime is 20032102055129. The reversal of 20032102055100 is 155020123002.

It is a super-2 number, since 2×20032102055100² (a number of 27 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 23 ways as a sum of consecutive naturals, for example, 11553796 + ... + 13174004.

It is an arithmetic number, because the mean of its divisors is an integer number (805013760110).

Almost surely, 2^{20032102055100} is an apocalyptic number.

20032102055100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20032102055100 is an abundant number, since it is smaller than the sum of its proper divisors (37928888672820).

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

20032102055100 is a wasteful number, since it uses less digits than its factorization.

20032102055100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1661439 (or 1661432 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

Adding to 20032102055100 its reverse (155020123002), we get a palindrome (20187122178102).

The spelling of 20032102055100 in words is "twenty trillion, thirty-two billion, one hundred two million, fifty-five thousand, one hundred".