5121312233 has 4 divisors (see below), whose sum is σ = 5121740868. Its totient is φ = 5120883600.

The previous prime is 5121312179. The next prime is 5121312239. The reversal of 5121312233 is 3322131215.

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 1583084944 + 3538227289 = 39788^2 + 59483^2 .

It is a cyclic number.

It is not a de Polignac number, because 5121312233 - 2⁸ = 5121311977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5121312199 and 5121312208.

It is not an unprimeable number, because it can be changed into a prime (5121312239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195866 + ... + 220467.

It is an arithmetic number, because the mean of its divisors is an integer number (1280435217).

Almost surely, 2^5121312233 is an apocalyptic number.

It is an amenable number.

5121312233 is a deficient number, since it is larger than the sum of its proper divisors (428635).

5121312233 is a wasteful number, since it uses less digits than its factorization.

5121312233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428634.

The product of its digits is 1080, while the sum is 23.

The square root of 5121312233 is about 71563.3441993874. The cubic root of 5121312233 is about 1723.6949852966.

Adding to 5121312233 its reverse (3322131215), we get a palindrome (8443443448).

The spelling of 5121312233 in words is "five billion, one hundred twenty-one million, three hundred twelve thousand, two hundred thirty-three".