11132311131 has 6 divisors (see below), whose sum is σ = 16080004980. Its totient is φ = 7421540748.

The previous prime is 11132311123. The next prime is 11132311133. The reversal of 11132311131 is 13111323111.

It is not a de Polignac number, because 11132311131 - 2³ = 11132311123 is a prime.

It is a super-2 number, since 2×11132311131² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11132311133) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 618461721 + ... + 618461738.

It is an arithmetic number, because the mean of its divisors is an integer number (2680000830).

Almost surely, 2^11132311131 is an apocalyptic number.

11132311131 is a deficient number, since it is larger than the sum of its proper divisors (4947693849).

11132311131 is a wasteful number, since it uses less digits than its factorization.

11132311131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1236923465 (or 1236923462 counting only the distinct ones).

The product of its digits is 54, while the sum is 18.

Adding to 11132311131 its reverse (13111323111), we get a palindrome (24243634242).

The spelling of 11132311131 in words is "eleven billion, one hundred thirty-two million, three hundred eleven thousand, one hundred thirty-one".