11142523231 has 16 divisors (see below), whose sum is σ = 13948338240. Its totient is φ = 8678960640.

The previous prime is 11142523177. The next prime is 11142523247. The reversal of 11142523231 is 13232524111.

11142523231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11142523231 - 2³¹ = 8995039583 is a prime.

It is a super-2 number, since 2×11142523231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11142523196 and 11142523205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11142523291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1610940 + ... + 1617841.

It is an arithmetic number, because the mean of its divisors is an integer number (871771140).

Almost surely, 2^11142523231 is an apocalyptic number.

11142523231 is a deficient number, since it is larger than the sum of its proper divisors (2805815009).

11142523231 is a wasteful number, since it uses less digits than its factorization.

11142523231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3228834.

The product of its digits is 1440, while the sum is 25.

The spelling of 11142523231 in words is "eleven billion, one hundred forty-two million, five hundred twenty-three thousand, two hundred thirty-one".