4312012100100 has 144 divisors (see below), whose sum is σ = 12796231488768. Its totient is φ = 1120573660160.

The previous prime is 4312012100083. The next prime is 4312012100101. The reversal of 4312012100100 is 10012102134.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 4312012100100.

It is not an unprimeable number, because it can be changed into a prime (4312012100101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2629042 + ... + 3941558.

It is an arithmetic number, because the mean of its divisors is an integer number (88862718672).

Almost surely, 2^{4312012100100} 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 4312012100100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6398115744384).

4312012100100 is an abundant number, since it is smaller than the sum of its proper divisors (8484219388668).

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

4312012100100 is a wasteful number, since it uses less digits than its factorization.

4312012100100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312814 (or 1312807 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 4312012100100 its reverse (10012102134), we get a palindrome (4322024202234).

The spelling of 4312012100100 in words is "four trillion, three hundred twelve billion, twelve million, one hundred thousand, one hundred".