11413432431 has 12 divisors (see below), whose sum is σ = 16487365752. Its totient is φ = 7608356496.

The previous prime is 11413432427. The next prime is 11413432463. The reversal of 11413432431 is 13423431411.

11413432431 is a `hidden beast` number, since 1 + 1 + 413 + 4 + 3 + 243 + 1 = 666.

It is not a de Polignac number, because 11413432431 - 2² = 11413432427 is a prime.

It is a super-2 number, since 2×11413432431² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11413432395 and 11413432404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11413432231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 92220 + ... + 177006.

It is an arithmetic number, because the mean of its divisors is an integer number (1373947146).

Almost surely, 2^11413432431 is an apocalyptic number.

11413432431 is a deficient number, since it is larger than the sum of its proper divisors (5073933321).

11413432431 is a wasteful number, since it uses less digits than its factorization.

11413432431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99750 (or 99747 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

Adding to 11413432431 its reverse (13423431411), we get a palindrome (24836863842).

The spelling of 11413432431 in words is "eleven billion, four hundred thirteen million, four hundred thirty-two thousand, four hundred thirty-one".