40011224431 has 2 divisors, whose sum is σ = 40011224432. Its totient is φ = 40011224430.

The previous prime is 40011224417. The next prime is 40011224489. The reversal of 40011224431 is 13442211004.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40011224431 - 2¹³ = 40011216239 is a prime.

It is a super-2 number, since 2×40011224431² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40011224401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20005612215 + 20005612216.

It is an arithmetic number, because the mean of its divisors is an integer number (20005612216).

Almost surely, 2^40011224431 is an apocalyptic number.

40011224431 is a deficient number, since it is larger than the sum of its proper divisors (1).

40011224431 is an equidigital number, since it uses as much as digits as its factorization.

40011224431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 40011224431 its reverse (13442211004), we get a palindrome (53453435435).

The spelling of 40011224431 in words is "forty billion, eleven million, two hundred twenty-four thousand, four hundred thirty-one".