423142544505 has 32 divisors (see below), whose sum is σ = 706534493184. Its totient is φ = 215842506176.

The previous prime is 423142544497. The next prime is 423142544567. The reversal of 423142544505 is 505445241324.

It is a cyclic number.

It is not a de Polignac number, because 423142544505 - 2³ = 423142544497 is a prime.

It is a super-2 number, since 2×423142544505² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3748702 + ... + 3859928.

It is an arithmetic number, because the mean of its divisors is an integer number (22079202912).

Almost surely, 2^423142544505 is an apocalyptic number.

It is an amenable number.

423142544505 is a deficient number, since it is larger than the sum of its proper divisors (283391948679).

423142544505 is a wasteful number, since it uses less digits than its factorization.

423142544505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122285.

The product of its (nonzero) digits is 384000, while the sum is 39.

Adding to 423142544505 its reverse (505445241324), we get a palindrome (928587785829).

The spelling of 423142544505 in words is "four hundred twenty-three billion, one hundred forty-two million, five hundred forty-four thousand, five hundred five".