402422311131523 has 2 divisors, whose sum is σ = 402422311131524. Its totient is φ = 402422311131522.

The previous prime is 402422311131389. The next prime is 402422311131527. The reversal of 402422311131523 is 325131113224204.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402422311131523 is a prime.

It is not a weakly prime, because it can be changed into another prime (402422311131527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201211155565761 + 201211155565762.

It is an arithmetic number, because the mean of its divisors is an integer number (201211155565762).

Almost surely, 2^{402422311131523} is an apocalyptic number.

402422311131523 is a deficient number, since it is larger than the sum of its proper divisors (1).

402422311131523 is an equidigital number, since it uses as much as digits as its factorization.

402422311131523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 34.

Adding to 402422311131523 its reverse (325131113224204), we get a palindrome (727553424355727).

The spelling of 402422311131523 in words is "four hundred two trillion, four hundred twenty-two billion, three hundred eleven million, one hundred thirty-one thousand, five hundred twenty-three".