11312133011 has 4 divisors (see below), whose sum is σ = 11312350632. Its totient is φ = 11311915392.

The previous prime is 11312132977. The next prime is 11312133067. The reversal of 11312133011 is 11033121311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11312133011 - 2⁶ = 11312132947 is a prime.

It is a super-2 number, since 2×11312133011² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11312163011) 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, 19955 + ... + 151731.

It is an arithmetic number, because the mean of its divisors is an integer number (2828087658).

Almost surely, 2^11312133011 is an apocalyptic number.

11312133011 is a deficient number, since it is larger than the sum of its proper divisors (217621).

11312133011 is an equidigital number, since it uses as much as digits as its factorization.

11312133011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217620.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 11312133011 its reverse (11033121311), we get a palindrome (22345254322).

The spelling of 11312133011 in words is "eleven billion, three hundred twelve million, one hundred thirty-three thousand, eleven".