402431441402323 has 2 divisors, whose sum is σ = 402431441402324. Its totient is φ = 402431441402322.

The previous prime is 402431441402227. The next prime is 402431441402413. The reversal of 402431441402323 is 323204144134204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 402431441402323 - 2⁹ = 402431441401811 is a prime.

It is not a weakly prime, because it can be changed into another prime (402431441402423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201215720701161 + 201215720701162.

It is an arithmetic number, because the mean of its divisors is an integer number (201215720701162).

Almost surely, 2^{402431441402323} is an apocalyptic number.

402431441402323 is a deficient number, since it is larger than the sum of its proper divisors (1).

402431441402323 is an equidigital number, since it uses as much as digits as its factorization.

402431441402323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 221184, while the sum is 37.

Adding to 402431441402323 its reverse (323204144134204), we get a palindrome (725635585536527).

The spelling of 402431441402323 in words is "four hundred two trillion, four hundred thirty-one billion, four hundred forty-one million, four hundred two thousand, three hundred twenty-three".