11112331431 has 16 divisors (see below), whose sum is σ = 15829040000. Its totient is φ = 6913561248.

The previous prime is 11112331429. The next prime is 11112331457. The reversal of 11112331431 is 13413321111.

11112331431 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 11112331431 - 2¹ = 11112331429 is a prime.

It is a super-2 number, since 2×11112331431² (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 = 11112331398 and 11112331407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11112331411) 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, 1451056 + ... + 1458693.

It is an arithmetic number, because the mean of its divisors is an integer number (989315000).

Almost surely, 2^11112331431 is an apocalyptic number.

11112331431 is a deficient number, since it is larger than the sum of its proper divisors (4716708569).

11112331431 is a wasteful number, since it uses less digits than its factorization.

11112331431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2909838.

The product of its digits is 216, while the sum is 21.

Adding to 11112331431 its reverse (13413321111), we get a palindrome (24525652542).

The spelling of 11112331431 in words is "eleven billion, one hundred twelve million, three hundred thirty-one thousand, four hundred thirty-one".