402312083 has 2 divisors, whose sum is σ = 402312084. Its totient is φ = 402312082.

The previous prime is 402312047. The next prime is 402312101. The reversal of 402312083 is 380213204.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402312083 is a prime.

It is not a weakly prime, because it can be changed into another prime (402312283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201156041 + 201156042.

It is an arithmetic number, because the mean of its divisors is an integer number (201156042).

Almost surely, 2^402312083 is an apocalyptic number.

402312083 is a deficient number, since it is larger than the sum of its proper divisors (1).

402312083 is an equidigital number, since it uses as much as digits as its factorization.

402312083 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 402312083 is about 20057.7187885362. The cubic root of 402312083 is about 738.2232043237.

Adding to 402312083 its reverse (380213204), we get a palindrome (782525287).

The spelling of 402312083 in words is "four hundred two million, three hundred twelve thousand, eighty-three".