11122131131 has 8 divisors (see below), whose sum is σ = 11399975664. Its totient is φ = 10844599680.

The previous prime is 11122131109. The next prime is 11122131149. The reversal of 11122131131 is 13113122111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11122131131 - 2¹⁸ = 11121868987 is a prime.

It is a super-2 number, since 2×11122131131² (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 (11122131101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5501 + ... + 149246.

It is an arithmetic number, because the mean of its divisors is an integer number (1424996958).

Almost surely, 2^11122131131 is an apocalyptic number.

11122131131 is a deficient number, since it is larger than the sum of its proper divisors (277844533).

11122131131 is a wasteful number, since it uses less digits than its factorization.

11122131131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156541.

The product of its digits is 36, while the sum is 17.

Adding to 11122131131 its reverse (13113122111), we get a palindrome (24235253242).

The spelling of 11122131131 in words is "eleven billion, one hundred twenty-two million, one hundred thirty-one thousand, one hundred thirty-one".