402343100431 has 2 divisors, whose sum is σ = 402343100432. Its totient is φ = 402343100430.

The previous prime is 402343100363. The next prime is 402343100437. The reversal of 402343100431 is 134001343204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 402343100431 - 2¹⁹ = 402342576143 is a prime.

It is a super-2 number, since 2×402343100431² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 402343100396 and 402343100405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402343100437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201171550215 + 201171550216.

It is an arithmetic number, because the mean of its divisors is an integer number (201171550216).

Almost surely, 2^402343100431 is an apocalyptic number.

402343100431 is a deficient number, since it is larger than the sum of its proper divisors (1).

402343100431 is an equidigital number, since it uses as much as digits as its factorization.

402343100431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 402343100431 its reverse (134001343204), we get a palindrome (536344443635).

The spelling of 402343100431 in words is "four hundred two billion, three hundred forty-three million, one hundred thousand, four hundred thirty-one".