23145233105420 has 48 divisors (see below), whose sum is σ = 49926146594688. Its totient is φ = 9007674839040.

The previous prime is 23145233105317. The next prime is 23145233105429. The reversal of 23145233105420 is 2450133254132.

It is not an unprimeable number, because it can be changed into a prime (23145233105429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38153957 + ... + 38755836.

It is an arithmetic number, because the mean of its divisors is an integer number (1040128054056).

Almost surely, 2^{23145233105420} is an apocalyptic number.

23145233105420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23145233105420 is an abundant number, since it is smaller than the sum of its proper divisors (26780913489268).

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

23145233105420 is a wasteful number, since it uses less digits than its factorization.

23145233105420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76910210 (or 76910208 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 23145233105420 its reverse (2450133254132), we get a palindrome (25595366359552).

The spelling of 23145233105420 in words is "twenty-three trillion, one hundred forty-five billion, two hundred thirty-three million, one hundred five thousand, four hundred twenty".