23420255120 has 20 divisors (see below), whose sum is σ = 54452093340. Its totient is φ = 9368102016.

The previous prime is 23420255119. The next prime is 23420255129. The reversal of 23420255120 is 2155202432.

It can be written as a sum of positive squares in 2 ways, for example, as 18700015504 + 4720239616 = 136748^2 + 68704^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-3 number, since 3×23420255120³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23420255120.

It is not an unprimeable number, because it can be changed into a prime (23420255129) 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, 146376515 + ... + 146376674.

It is an arithmetic number, because the mean of its divisors is an integer number (2722604667).

Almost surely, 2^23420255120 is an apocalyptic number.

23420255120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23420255120 is an abundant number, since it is smaller than the sum of its proper divisors (31031838220).

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

23420255120 is a wasteful number, since it uses less digits than its factorization.

23420255120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292753202 (or 292753196 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 23420255120 its reverse (2155202432), we get a palindrome (25575457552).

The spelling of 23420255120 in words is "twenty-three billion, four hundred twenty million, two hundred fifty-five thousand, one hundred twenty".