312100030133 has 4 divisors (see below), whose sum is σ = 312844899360. Its totient is φ = 311355160908.

The previous prime is 312100030129. The next prime is 312100030159. The reversal of 312100030133 is 331030001213.

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 312100030133 - 2² = 312100030129 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 (312100030103) 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, 372433985 + ... + 372434822.

It is an arithmetic number, because the mean of its divisors is an integer number (78211224840).

Almost surely, 2^312100030133 is an apocalyptic number.

It is an amenable number.

312100030133 is a deficient number, since it is larger than the sum of its proper divisors (744869227).

312100030133 is an equidigital number, since it uses as much as digits as its factorization.

312100030133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744869226.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 312100030133 its reverse (331030001213), we get a palindrome (643130031346).

The spelling of 312100030133 in words is "three hundred twelve billion, one hundred million, thirty thousand, one hundred thirty-three".