423343320021240 has 64 divisors (see below), whose sum is σ = 1270055703088800. Its totient is φ = 112889263736832.

The previous prime is 423343320021221. The next prime is 423343320021283. The reversal of 423343320021240 is 42120023343324.

It is a super-2 number, since 2×423343320021240² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29805237 + ... + 41653796.

Almost surely, 2^{423343320021240} is an apocalyptic number.

423343320021240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

423343320021240 is an abundant number, since it is smaller than the sum of its proper divisors (846712383067560).

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

423343320021240 is a wasteful number, since it uses less digits than its factorization.

423343320021240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71508416 (or 71508412 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 33.

Adding to 423343320021240 its reverse (42120023343324), we get a palindrome (465463343364564).

The spelling of 423343320021240 in words is "four hundred twenty-three trillion, three hundred forty-three billion, three hundred twenty million, twenty-one thousand, two hundred forty".