202423112430 has 128 divisors (see below), whose sum is σ = 608737075200. Its totient is φ = 41850483840.

The previous prime is 202423112413. The next prime is 202423112501. The reversal of 202423112430 is 34211324202.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 202423112430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 239517 + ... + 679863.

It is an arithmetic number, because the mean of its divisors is an integer number (4755758400).

Almost surely, 2^202423112430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202423112430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (304368537600).

202423112430 is an abundant number, since it is smaller than the sum of its proper divisors (406313962770).

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

202423112430 is a wasteful number, since it uses less digits than its factorization.

202423112430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440574.

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

Adding to 202423112430 its reverse (34211324202), we get a palindrome (236634436632).

The spelling of 202423112430 in words is "two hundred two billion, four hundred twenty-three million, one hundred twelve thousand, four hundred thirty".