100012312133 has 4 divisors (see below), whose sum is σ = 100015256460. Its totient is φ = 100009367808.

The previous prime is 100012312091. The next prime is 100012312139. The reversal of 100012312133 is 331213210001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 76927460164 + 23084851969 = 277358^2 + 151937^2 .

It is a cyclic number.

It is not a de Polignac number, because 100012312133 - 2⁶ = 100012312069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100012312139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1420610 + ... + 1489347.

It is an arithmetic number, because the mean of its divisors is an integer number (25003814115).

Almost surely, 2^100012312133 is an apocalyptic number.

It is an amenable number.

100012312133 is a deficient number, since it is larger than the sum of its proper divisors (2944327).

100012312133 is an equidigital number, since it uses as much as digits as its factorization.

100012312133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2944326.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 100012312133 its reverse (331213210001), we get a palindrome (431225522134).

The spelling of 100012312133 in words is "one hundred billion, twelve million, three hundred twelve thousand, one hundred thirty-three".