23430403243220 has 12 divisors (see below), whose sum is σ = 49203846810804. Its totient is φ = 9372161297280.

The previous prime is 23430403243217. The next prime is 23430403243223. The reversal of 23430403243220 is 2234230403432.

It is a happy number.

23430403243220 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (23430403243217) and next prime (23430403243223).

It can be written as a sum of positive squares in 2 ways, for example, as 14870062493584 + 8560340749636 = 3856172^2 + 2925806^2 .

It is a super-2 number, since 2×23430403243220² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23430403243223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 585760081061 + ... + 585760081100.

It is an arithmetic number, because the mean of its divisors is an integer number (4100320567567).

Almost surely, 2^{23430403243220} is an apocalyptic number.

23430403243220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23430403243220 is an abundant number, since it is smaller than the sum of its proper divisors (25773443567584).

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

23430403243220 is a wasteful number, since it uses less digits than its factorization.

23430403243220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1171520162170 (or 1171520162168 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 32.

Adding to 23430403243220 its reverse (2234230403432), we get a palindrome (25664633646652).

The spelling of 23430403243220 in words is "twenty-three trillion, four hundred thirty billion, four hundred three million, two hundred forty-three thousand, two hundred twenty".