423431243235 has 288 divisors, whose sum is σ = 1017686412288. Its totient is φ = 158036935680.

The previous prime is 423431243227. The next prime is 423431243321. The reversal of 423431243235 is 532342134324.

423431243235 is a `hidden beast` number, since 42 + 34 + 312 + 43 + 235 = 666.

It is not a de Polignac number, because 423431243235 - 2³ = 423431243227 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 423431243235.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 21656874 + ... + 21676416.

It is an arithmetic number, because the mean of its divisors is an integer number (3533633376).

Almost surely, 2^423431243235 is an apocalyptic number.

423431243235 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

423431243235 is an abundant number, since it is smaller than the sum of its proper divisors (594255169053).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

423431243235 is a wasteful number, since it uses less digits than its factorization.

423431243235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19635 (or 19619 counting only the distinct ones).

The product of its digits is 207360, while the sum is 36.

Adding to 423431243235 its reverse (532342134324), we get a palindrome (955773377559).

It can be divided in two parts, 423431 and 243235, that added together give a palindrome (666666).

The spelling of 423431243235 in words is "four hundred twenty-three billion, four hundred thirty-one million, two hundred forty-three thousand, two hundred thirty-five".