23210312420 has 12 divisors (see below), whose sum is σ = 48741656124. Its totient is φ = 9284124960.

The previous prime is 23210312413. The next prime is 23210312453. The reversal of 23210312420 is 2421301232.

It can be written as a sum of positive squares in 2 ways, for example, as 6086496256 + 17123816164 = 78016^2 + 130858^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 1160515621 = 23210312420 / (2 + 3 + 2 + 1 + 0 + 3 + 1 + 2 + 4 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 23210312392 and 23210312401.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 580257791 + ... + 580257830.

It is an arithmetic number, because the mean of its divisors is an integer number (4061804677).

Almost surely, 2^23210312420 is an apocalyptic number.

23210312420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23210312420 is an abundant number, since it is smaller than the sum of its proper divisors (25531343704).

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

23210312420 is a wasteful number, since it uses less digits than its factorization.

23210312420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1160515630 (or 1160515628 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 23210312420 its reverse (2421301232), we get a palindrome (25631613652).

The spelling of 23210312420 in words is "twenty-three billion, two hundred ten million, three hundred twelve thousand, four hundred twenty".