11312130233 has 4 divisors (see below), whose sum is σ = 11328268068. Its totient is φ = 11295992400.

The previous prime is 11312130197. The next prime is 11312130329. The reversal of 11312130233 is 33203121311.

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 8203287184 + 3108843049 = 90572^2 + 55757^2 .

It is a cyclic number.

It is not a de Polignac number, because 11312130233 - 2⁸ = 11312129977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11362130233) 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, 8067866 + ... + 8069267.

It is an arithmetic number, because the mean of its divisors is an integer number (2832067017).

Almost surely, 2^11312130233 is an apocalyptic number.

It is an amenable number.

11312130233 is a deficient number, since it is larger than the sum of its proper divisors (16137835).

11312130233 is an equidigital number, since it uses as much as digits as its factorization.

11312130233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16137834.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 11312130233 its reverse (33203121311), we get a palindrome (44515251544).

The spelling of 11312130233 in words is "eleven billion, three hundred twelve million, one hundred thirty thousand, two hundred thirty-three".