11123410131 has 20 divisors (see below), whose sum is σ = 17593892712. Its totient is φ = 6979393728.

The previous prime is 11123410127. The next prime is 11123410157. The reversal of 11123410131 is 13101432111.

It is a happy number.

11123410131 is a `hidden beast` number, since 1 + 1 + 123 + 410 + 131 = 666.

It is not a de Polignac number, because 11123410131 - 2² = 11123410127 is a prime.

It is a super-2 number, since 2×11123410131² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11123410031) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4037625 + ... + 4040378.

Almost surely, 2^11123410131 is an apocalyptic number.

11123410131 is a deficient number, since it is larger than the sum of its proper divisors (6470482581).

11123410131 is an equidigital number, since it uses as much as digits as its factorization.

11123410131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8078032 (or 8078023 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 11123410131 its reverse (13101432111), we get a palindrome (24224842242).

The spelling of 11123410131 in words is "eleven billion, one hundred twenty-three million, four hundred ten thousand, one hundred thirty-one".