11313122133 has 4 divisors (see below), whose sum is σ = 15084162848. Its totient is φ = 7542081420.

The previous prime is 11313122131. The next prime is 11313122143. The reversal of 11313122133 is 33122131311.

It is a happy number.

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 not a de Polignac number, because 11313122133 - 2¹ = 11313122131 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 (11313122131) 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, 1885520353 + ... + 1885520358.

It is an arithmetic number, because the mean of its divisors is an integer number (3771040712).

Almost surely, 2^11313122133 is an apocalyptic number.

It is an amenable number.

11313122133 is a deficient number, since it is larger than the sum of its proper divisors (3771040715).

11313122133 is an equidigital number, since it uses as much as digits as its factorization.

11313122133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3771040714.

The product of its digits is 324, while the sum is 21.

Adding to 11313122133 its reverse (33122131311), we get a palindrome (44435253444).

The spelling of 11313122133 in words is "eleven billion, three hundred thirteen million, one hundred twenty-two thousand, one hundred thirty-three".