23134232420 has 96 divisors (see below), whose sum is σ = 55155811200. Its totient is φ = 8080072704.

The previous prime is 23134232399. The next prime is 23134232489. The reversal of 23134232420 is 2423243132.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 23134232420.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3647492 + ... + 3653828.

It is an arithmetic number, because the mean of its divisors is an integer number (574539700).

Almost surely, 2^23134232420 is an apocalyptic number.

23134232420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23134232420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27577905600).

23134232420 is an abundant number, since it is smaller than the sum of its proper divisors (32021578780).

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

23134232420 is a wasteful number, since it uses less digits than its factorization.

23134232420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7117 (or 7115 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 23134232420 its reverse (2423243132), we get a palindrome (25557475552).

The spelling of 23134232420 in words is "twenty-three billion, one hundred thirty-four million, two hundred thirty-two thousand, four hundred twenty".