11312111440431 has 6 divisors (see below), whose sum is σ = 16339716525080. Its totient is φ = 7541407626948.

The previous prime is 11312111440417. The next prime is 11312111440453. The reversal of 11312111440431 is 13404411121311.

11312111440431 is a `hidden beast` number, since 1 + 1 + 3 + 1 + 211 + 1 + 440 + 4 + 3 + 1 = 666.

It is not a de Polignac number, because 11312111440431 - 2⁹ = 11312111439919 is a prime.

It is a super-2 number, since 2×11312111440431² (a number of 27 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 = 11312111440395 and 11312111440404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11312111440481) 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, 628450635571 + ... + 628450635588.

Almost surely, 2^{11312111440431} is an apocalyptic number.

11312111440431 is a deficient number, since it is larger than the sum of its proper divisors (5027605084649).

11312111440431 is a wasteful number, since it uses less digits than its factorization.

11312111440431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256901271165 (or 1256901271162 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

Adding to 11312111440431 its reverse (13404411121311), we get a palindrome (24716522561742).

The spelling of 11312111440431 in words is "eleven trillion, three hundred twelve billion, one hundred eleven million, four hundred forty thousand, four hundred thirty-one".