402516326123 has 2 divisors, whose sum is σ = 402516326124. Its totient is φ = 402516326122.

The previous prime is 402516326083. The next prime is 402516326137. The reversal of 402516326123 is 321623615204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 402516326123 - 2⁸ = 402516325867 is a prime.

It is a super-2 number, since 2×402516326123² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (402516326183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201258163061 + 201258163062.

It is an arithmetic number, because the mean of its divisors is an integer number (201258163062).

Almost surely, 2^402516326123 is an apocalyptic number.

402516326123 is a deficient number, since it is larger than the sum of its proper divisors (1).

402516326123 is an equidigital number, since it uses as much as digits as its factorization.

402516326123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 402516326123 in words is "four hundred two billion, five hundred sixteen million, three hundred twenty-six thousand, one hundred twenty-three".