11123050131 has 6 divisors (see below), whose sum is σ = 16066627980. Its totient is φ = 7415366748.

The previous prime is 11123050123. The next prime is 11123050151. The reversal of 11123050131 is 13105032111.

11123050131 is a `hidden beast` number, since 11 + 123 + 0 + 501 + 31 = 666.

It is not a de Polignac number, because 11123050131 - 2³ = 11123050123 is a prime.

It is a super-2 number, since 2×11123050131² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11123050151) 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, 617947221 + ... + 617947238.

It is an arithmetic number, because the mean of its divisors is an integer number (2677771330).

Almost surely, 2^11123050131 is an apocalyptic number.

11123050131 is a deficient number, since it is larger than the sum of its proper divisors (4943577849).

11123050131 is a wasteful number, since it uses less digits than its factorization.

11123050131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235894465 (or 1235894462 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

Adding to 11123050131 its reverse (13105032111), we get a palindrome (24228082242).

The spelling of 11123050131 in words is "eleven billion, one hundred twenty-three million, fifty thousand, one hundred thirty-one".