404120223102523 has 2 divisors, whose sum is σ = 404120223102524. Its totient is φ = 404120223102522.

The previous prime is 404120223102521. The next prime is 404120223102559. The reversal of 404120223102523 is 325201322021404.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 404120223102523 - 2¹ = 404120223102521 is a prime.

Together with 404120223102521, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (404120223102521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202060111551261 + 202060111551262.

It is an arithmetic number, because the mean of its divisors is an integer number (202060111551262).

Almost surely, 2^{404120223102523} is an apocalyptic number.

404120223102523 is a deficient number, since it is larger than the sum of its proper divisors (1).

404120223102523 is an equidigital number, since it uses as much as digits as its factorization.

404120223102523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 404120223102523 its reverse (325201322021404), we get a palindrome (729321545123927).

The spelling of 404120223102523 in words is "four hundred four trillion, one hundred twenty billion, two hundred twenty-three million, one hundred two thousand, five hundred twenty-three".