402424235111 has 2 divisors, whose sum is σ = 402424235112. Its totient is φ = 402424235110.

The previous prime is 402424235071. The next prime is 402424235113. The reversal of 402424235111 is 111532424204.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402424235111 is a prime.

Together with 402424235113, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402424235113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201212117555 + 201212117556.

It is an arithmetic number, because the mean of its divisors is an integer number (201212117556).

Almost surely, 2^402424235111 is an apocalyptic number.

402424235111 is a deficient number, since it is larger than the sum of its proper divisors (1).

402424235111 is an equidigital number, since it uses as much as digits as its factorization.

402424235111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 402424235111 its reverse (111532424204), we get a palindrome (513956659315).

The spelling of 402424235111 in words is "four hundred two billion, four hundred twenty-four million, two hundred thirty-five thousand, one hundred eleven".