100023023212 has 72 divisors (see below), whose sum is σ = 212005055808. Its totient is φ = 41135673600.

The previous prime is 100023023197. The next prime is 100023023213. The reversal of 100023023212 is 212320320001.

It is not an unprimeable number, because it can be changed into a prime (100023023213) 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, 388173 + ... + 592219.

It is an arithmetic number, because the mean of its divisors is an integer number (2944514664).

Almost surely, 2^100023023212 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 100023023212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106002527904).

100023023212 is an abundant number, since it is smaller than the sum of its proper divisors (111982032596).

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

100023023212 is a wasteful number, since it uses less digits than its factorization.

100023023212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204167 (or 204158 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 100023023212 its reverse (212320320001), we get a palindrome (312343343213).

The spelling of 100023023212 in words is "one hundred billion, twenty-three million, twenty-three thousand, two hundred twelve".