11142404231 has 16 divisors (see below), whose sum is σ = 13711783680. Its totient is φ = 8836471680.

The previous prime is 11142404201. The next prime is 11142404243. The reversal of 11142404231 is 13240424111.

It is a cyclic number.

It is not a de Polignac number, because 11142404231 - 2⁶ = 11142404167 is a prime.

It is a super-2 number, since 2×11142404231² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11142404197 and 11142404206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11142404201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 786485 + ... + 800526.

It is an arithmetic number, because the mean of its divisors is an integer number (856986480).

Almost surely, 2^11142404231 is an apocalyptic number.

11142404231 is a deficient number, since it is larger than the sum of its proper divisors (2569379449).

11142404231 is a wasteful number, since it uses less digits than its factorization.

11142404231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1587094.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 11142404231 its reverse (13240424111), we get a palindrome (24382828342).

The spelling of 11142404231 in words is "eleven billion, one hundred forty-two million, four hundred four thousand, two hundred thirty-one".