10312212133 has 4 divisors (see below), whose sum is σ = 10854960160. Its totient is φ = 9769464108.

The previous prime is 10312212089. The next prime is 10312212139. The reversal of 10312212133 is 33121221301.

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 10312212133 - 2¹⁷ = 10312081061 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 542748007 = 10312212133 / (1 + 0 + 3 + 1 + 2 + 2 + 1 + 2 + 1 + 3 + 3).

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 10312212133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10312212139) 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, 271373985 + ... + 271374022.

It is an arithmetic number, because the mean of its divisors is an integer number (2713740040).

Almost surely, 2^10312212133 is an apocalyptic number.

It is an amenable number.

10312212133 is a deficient number, since it is larger than the sum of its proper divisors (542748027).

10312212133 is an equidigital number, since it uses as much as digits as its factorization.

10312212133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542748026.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 10312212133 its reverse (33121221301), we get a palindrome (43433433434).

The spelling of 10312212133 in words is "ten billion, three hundred twelve million, two hundred twelve thousand, one hundred thirty-three".