423402131220 has 48 divisors (see below), whose sum is σ = 1187882962560. Its totient is φ = 112682759296.

The previous prime is 423402131219. The next prime is 423402131233. The reversal of 423402131220 is 22131204324.

It is a happy number.

423402131220 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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, 6984435 + ... + 7044794.

It is an arithmetic number, because the mean of its divisors is an integer number (24747561720).

Almost surely, 2^423402131220 is an apocalyptic number.

It is an amenable number.

423402131220 is an abundant number, since it is smaller than the sum of its proper divisors (764480831340).

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

423402131220 is a wasteful number, since it uses less digits than its factorization.

423402131220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14029744 (or 14029742 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 423402131220 its reverse (22131204324), we get a palindrome (445533335544).

The spelling of 423402131220 in words is "four hundred twenty-three billion, four hundred two million, one hundred thirty-one thousand, two hundred twenty".