403340342232431 has 2 divisors, whose sum is σ = 403340342232432. Its totient is φ = 403340342232430.

The previous prime is 403340342232389. The next prime is 403340342232439. The reversal of 403340342232431 is 134232243043304.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 403340342232431 - 2⁴² = 398942295721327 is a prime.

It is a super-2 number, since 2×403340342232431² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (403340342232439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201670171116215 + 201670171116216.

It is an arithmetic number, because the mean of its divisors is an integer number (201670171116216).

Almost surely, 2^{403340342232431} is an apocalyptic number.

403340342232431 is a deficient number, since it is larger than the sum of its proper divisors (1).

403340342232431 is an equidigital number, since it uses as much as digits as its factorization.

403340342232431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 497664, while the sum is 38.

Adding to 403340342232431 its reverse (134232243043304), we get a palindrome (537572585275735).

The spelling of 403340342232431 in words is "four hundred three trillion, three hundred forty billion, three hundred forty-two million, two hundred thirty-two thousand, four hundred thirty-one".