423531254320 has 40 divisors (see below), whose sum is σ = 985004995824. Its totient is φ = 169361778432.

The previous prime is 423531254221. The next prime is 423531254329. The reversal of 423531254320 is 23452135324.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (423531254329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 523119 + ... + 1058638.

Almost surely, 2^423531254320 is an apocalyptic number.

423531254320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

423531254320 is an abundant number, since it is smaller than the sum of its proper divisors (561473741504).

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

423531254320 is a wasteful number, since it uses less digits than its factorization.

423531254320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1585117 (or 1585111 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 34.

Adding to 423531254320 its reverse (23452135324), we get a palindrome (446983389644).

The spelling of 423531254320 in words is "four hundred twenty-three billion, five hundred thirty-one million, two hundred fifty-four thousand, three hundred twenty".