11112403131 has 12 divisors (see below), whose sum is σ = 16052856352. Its totient is φ = 7407526896.

The previous prime is 11112403109. The next prime is 11112403153. The reversal of 11112403131 is 13130421111.

It is a happy number.

11112403131 is a `hidden beast` number, since 1 + 111 + 240 + 313 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (11112403109) and next prime (11112403153).

It is not a de Polignac number, because 11112403131 - 2⁶ = 11112403067 is a prime.

It is a super-2 number, since 2×11112403131² (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 (11112403031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42270 + ... + 154956.

Almost surely, 2^11112403131 is an apocalyptic number.

11112403131 is a deficient number, since it is larger than the sum of its proper divisors (4940453221).

11112403131 is a wasteful number, since it uses less digits than its factorization.

11112403131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123650 (or 123647 counting only the distinct ones).

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

Adding to 11112403131 its reverse (13130421111), we get a palindrome (24242824242).

The spelling of 11112403131 in words is "eleven billion, one hundred twelve million, four hundred three thousand, one hundred thirty-one".