240533693433431 has 2 divisors, whose sum is σ = 240533693433432. Its totient is φ = 240533693433430.

The previous prime is 240533693433409. The next prime is 240533693433457. The reversal of 240533693433431 is 134334396335042.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240533693433431 is a prime.

It is a super-2 number, since 2×240533693433431² (a number of 30 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240533693433401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120266846716715 + 120266846716716.

It is an arithmetic number, because the mean of its divisors is an integer number (120266846716716).

Almost surely, 2^{240533693433431} is an apocalyptic number.

240533693433431 is a deficient number, since it is larger than the sum of its proper divisors (1).

240533693433431 is an equidigital number, since it uses as much as digits as its factorization.

240533693433431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25194240, while the sum is 53.

The spelling of 240533693433431 in words is "two hundred forty trillion, five hundred thirty-three billion, six hundred ninety-three million, four hundred thirty-three thousand, four hundred thirty-one".