402342113 has 2 divisors, whose sum is σ = 402342114. Its totient is φ = 402342112.

The previous prime is 402342097. The next prime is 402342131. The reversal of 402342113 is 311243204.

Together with next prime (402342131) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 308775184 + 93566929 = 17572^2 + 9673^2 .

It is a cyclic number.

It is not a de Polignac number, because 402342113 - 2⁴ = 402342097 is a prime.

It is not a weakly prime, because it can be changed into another prime (402342163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201171056 + 201171057.

It is an arithmetic number, because the mean of its divisors is an integer number (201171057).

Almost surely, 2^402342113 is an apocalyptic number.

It is an amenable number.

402342113 is a deficient number, since it is larger than the sum of its proper divisors (1).

402342113 is an equidigital number, since it uses as much as digits as its factorization.

402342113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 402342113 is about 20058.4673641831. The cubic root of 402342113 is about 738.2415717323.

Adding to 402342113 its reverse (311243204), we get a palindrome (713585317).

The spelling of 402342113 in words is "four hundred two million, three hundred forty-two thousand, one hundred thirteen".