40232433431 has 2 divisors, whose sum is σ = 40232433432. Its totient is φ = 40232433430.

The previous prime is 40232433421. The next prime is 40232433467. The reversal of 40232433431 is 13433423204.

40232433431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40232433431 - 2²² = 40228239127 is a prime.

It is a super-2 number, since 2×40232433431² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40232433394 and 40232433403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40232433421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20116216715 + 20116216716.

It is an arithmetic number, because the mean of its divisors is an integer number (20116216716).

Almost surely, 2^40232433431 is an apocalyptic number.

40232433431 is a deficient number, since it is larger than the sum of its proper divisors (1).

40232433431 is an equidigital number, since it uses as much as digits as its factorization.

40232433431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 40232433431 its reverse (13433423204), we get a palindrome (53665856635).

The spelling of 40232433431 in words is "forty billion, two hundred thirty-two million, four hundred thirty-three thousand, four hundred thirty-one".