402323401019 has 2 divisors, whose sum is σ = 402323401020. Its totient is φ = 402323401018.

The previous prime is 402323400937. The next prime is 402323401033. The reversal of 402323401019 is 910104323204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 402323401019 - 2⁸ = 402323400763 is a prime.

It is a super-2 number, since 2×402323401019² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 402323400982 and 402323401000.

It is not a weakly prime, because it can be changed into another prime (402323401049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201161700509 + 201161700510.

It is an arithmetic number, because the mean of its divisors is an integer number (201161700510).

Almost surely, 2^402323401019 is an apocalyptic number.

402323401019 is a deficient number, since it is larger than the sum of its proper divisors (1).

402323401019 is an equidigital number, since it uses as much as digits as its factorization.

402323401019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 29.

The spelling of 402323401019 in words is "four hundred two billion, three hundred twenty-three million, four hundred one thousand, nineteen".