423420421422523 has 8 divisors (see below), whose sum is σ = 488700231798240. Its totient is φ = 359338405732800.

The previous prime is 423420421422451. The next prime is 423420421422527. The reversal of 423420421422523 is 325224124024324.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 423420421422523 - 2⁴¹ = 421221398166971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (423420421422527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299448670738 + ... + 299448672151.

It is an arithmetic number, because the mean of its divisors is an integer number (61087528974780).

Almost surely, 2^{423420421422523} is an apocalyptic number.

423420421422523 is a deficient number, since it is larger than the sum of its proper divisors (65279810375717).

423420421422523 is a wasteful number, since it uses less digits than its factorization.

423420421422523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598897342997.

The product of its (nonzero) digits is 737280, while the sum is 40.

Adding to 423420421422523 its reverse (325224124024324), we get a palindrome (748644545446847).

The spelling of 423420421422523 in words is "four hundred twenty-three trillion, four hundred twenty billion, four hundred twenty-one million, four hundred twenty-two thousand, five hundred twenty-three".