36431120431 has 2 divisors, whose sum is σ = 36431120432. Its totient is φ = 36431120430.

The previous prime is 36431120393. The next prime is 36431120507. The reversal of 36431120431 is 13402113463.

It is a weak prime.

It is an emirp because it is prime and its reverse (13402113463) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36431120431 - 2⁷ = 36431120303 is a prime.

It is a super-2 number, since 2×36431120431² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 36431120431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36431120731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18215560215 + 18215560216.

It is an arithmetic number, because the mean of its divisors is an integer number (18215560216).

Almost surely, 2^36431120431 is an apocalyptic number.

36431120431 is a deficient number, since it is larger than the sum of its proper divisors (1).

36431120431 is an equidigital number, since it uses as much as digits as its factorization.

36431120431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 36431120431 its reverse (13402113463), we get a palindrome (49833233894).

The spelling of 36431120431 in words is "thirty-six billion, four hundred thirty-one million, one hundred twenty thousand, four hundred thirty-one".