402311411 has 2 divisors, whose sum is σ = 402311412. Its totient is φ = 402311410.

The previous prime is 402311387. The next prime is 402311447. The reversal of 402311411 is 114113204.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 402311411 - 2¹⁰ = 402310387 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 402311411.

It is not a weakly prime, because it can be changed into another prime (402311011) 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, 201155705 + 201155706.

It is an arithmetic number, because the mean of its divisors is an integer number (201155706).

Almost surely, 2^402311411 is an apocalyptic number.

402311411 is a deficient number, since it is larger than the sum of its proper divisors (1).

402311411 is an equidigital number, since it uses as much as digits as its factorization.

402311411 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 402311411 is about 20057.7020368735. The cubic root of 402311411 is about 738.2227932943. Note that the first 3 decimals are identical.

Adding to 402311411 its reverse (114113204), we get a palindrome (516424615).

The spelling of 402311411 in words is "four hundred two million, three hundred eleven thousand, four hundred eleven".