312100133103 has 60 divisors (see below), whose sum is σ = 542605749840. Its totient is φ = 178024936320.

The previous prime is 312100133089. The next prime is 312100133113. The reversal of 312100133103 is 301331001213.

It is a happy number.

It is not a de Polignac number, because 312100133103 - 2⁴ = 312100133087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312100133113) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 769963 + ... + 1103196.

It is an arithmetic number, because the mean of its divisors is an integer number (9043429164).

Almost surely, 2^312100133103 is an apocalyptic number.

312100133103 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

312100133103 is a deficient number, since it is larger than the sum of its proper divisors (230505616737).

312100133103 is a wasteful number, since it uses less digits than its factorization.

312100133103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1873210 (or 1873190 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 312100133103 its reverse (301331001213), we get a palindrome (613431134316).

The spelling of 312100133103 in words is "three hundred twelve billion, one hundred million, one hundred thirty-three thousand, one hundred three".