32001102100 has 72 divisors (see below), whose sum is σ = 76095629568. Its totient is φ = 11584492800.

The previous prime is 32001102097. The next prime is 32001102103. The reversal of 32001102100 is 120110023.

It is an interprime number because it is at equal distance from previous prime (32001102097) and next prime (32001102103).

It is a super-2 number, since 2×32001102100² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32001102103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 180072 + ... + 310528.

It is an arithmetic number, because the mean of its divisors is an integer number (1056883744).

Almost surely, 2^32001102100 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32001102100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38047814784).

32001102100 is an abundant number, since it is smaller than the sum of its proper divisors (44094527468).

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

32001102100 is a wasteful number, since it uses less digits than its factorization.

32001102100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130705 (or 130698 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 32001102100 its reverse (120110023), we get a palindrome (32121212123).

The spelling of 32001102100 in words is "thirty-two billion, one million, one hundred two thousand, one hundred".