100002120132 has 12 divisors (see below), whose sum is σ = 233338280336. Its totient is φ = 33334040040.

The previous prime is 100002120109. The next prime is 100002120137. The reversal of 100002120132 is 231021200001.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 8333510011 = 100002120132 / (1 + 0 + 0 + 0 + 0 + 2 + 1 + 2 + 0 + 1 + 3 + 2).

It is not an unprimeable number, because it can be changed into a prime (100002120137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4166754994 + ... + 4166755017.

Almost surely, 2^100002120132 is an apocalyptic number.

100002120132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100002120132 is an abundant number, since it is smaller than the sum of its proper divisors (133336160204).

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

100002120132 is a wasteful number, since it uses less digits than its factorization.

100002120132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8333510018 (or 8333510016 counting only the distinct ones).

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

Adding to 100002120132 its reverse (231021200001), we get a palindrome (331023320133).

The spelling of 100002120132 in words is "one hundred billion, two million, one hundred twenty thousand, one hundred thirty-two".