11412320431 has 4 divisors (see below), whose sum is σ = 11487898864. Its totient is φ = 11336742000.

The previous prime is 11412320429. The next prime is 11412320467. The reversal of 11412320431 is 13402321411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11412320431 - 2¹ = 11412320429 is a prime.

It is a super-2 number, since 2×11412320431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11412320401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37788990 + ... + 37789291.

It is an arithmetic number, because the mean of its divisors is an integer number (2871974716).

Almost surely, 2^11412320431 is an apocalyptic number.

11412320431 is a deficient number, since it is larger than the sum of its proper divisors (75578433).

11412320431 is an equidigital number, since it uses as much as digits as its factorization.

11412320431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75578432.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 11412320431 its reverse (13402321411), we get a palindrome (24814641842).

The spelling of 11412320431 in words is "eleven billion, four hundred twelve million, three hundred twenty thousand, four hundred thirty-one".