523405402341422 has 4 divisors (see below), whose sum is σ = 785108103512136. Its totient is φ = 261702701170710.

The previous prime is 523405402341421. The next prime is 523405402341427. The reversal of 523405402341422 is 224143204504325.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 523405402341422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523405402341421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130851350585354 + ... + 130851350585357.

It is an arithmetic number, because the mean of its divisors is an integer number (196277025878034).

Almost surely, 2^{523405402341422} is an apocalyptic number.

523405402341422 is a deficient number, since it is larger than the sum of its proper divisors (261702701170714).

523405402341422 is a wasteful number, since it uses less digits than its factorization.

523405402341422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261702701170713.

The product of its (nonzero) digits is 921600, while the sum is 41.

Adding to 523405402341422 its reverse (224143204504325), we get a palindrome (747548606845747).

The spelling of 523405402341422 in words is "five hundred twenty-three trillion, four hundred five billion, four hundred two million, three hundred forty-one thousand, four hundred twenty-two".