100312031233 has 4 divisors (see below), whose sum is σ = 101249526960. Its totient is φ = 99374535508.

The previous prime is 100312031231. The next prime is 100312031243. The reversal of 100312031233 is 332130213001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100312031233 - 2¹ = 100312031231 is a prime.

It is a super-2 number, since 2×100312031233² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100312031233.

It is not an unprimeable number, because it can be changed into a prime (100312031231) 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, 468747703 + ... + 468747916.

It is an arithmetic number, because the mean of its divisors is an integer number (25312381740).

Almost surely, 2^100312031233 is an apocalyptic number.

It is an amenable number.

100312031233 is a deficient number, since it is larger than the sum of its proper divisors (937495727).

100312031233 is an equidigital number, since it uses as much as digits as its factorization.

100312031233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937495726.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 100312031233 its reverse (332130213001), we get a palindrome (432442244234).

The spelling of 100312031233 in words is "one hundred billion, three hundred twelve million, thirty-one thousand, two hundred thirty-three".