423040203502 has 16 divisors (see below), whose sum is σ = 725678789472. Its totient is φ = 181186191360.

The previous prime is 423040203499. The next prime is 423040203517. The reversal of 423040203502 is 205302040324.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9706899 + ... + 9750382.

It is an arithmetic number, because the mean of its divisors is an integer number (45354924342).

Almost surely, 2^423040203502 is an apocalyptic number.

423040203502 is a deficient number, since it is larger than the sum of its proper divisors (302638585970).

423040203502 is a wasteful number, since it uses less digits than its factorization.

423040203502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19458843.

The product of its (nonzero) digits is 5760, while the sum is 25.

Adding to 423040203502 its reverse (205302040324), we get a palindrome (628342243826).

The spelling of 423040203502 in words is "four hundred twenty-three billion, forty million, two hundred three thousand, five hundred two".