23420231340 has 48 divisors (see below), whose sum is σ = 71538163200. Its totient is φ = 5677631680.

The previous prime is 23420231309. The next prime is 23420231353. The reversal of 23420231340 is 4313202432.

It is a self number, because there is not a number n which added to its sum of digits gives 23420231340.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17741940 + ... + 17743259.

It is an arithmetic number, because the mean of its divisors is an integer number (1490378400).

Almost surely, 2^23420231340 is an apocalyptic number.

23420231340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23420231340 is an abundant number, since it is smaller than the sum of its proper divisors (48117931860).

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

23420231340 is a wasteful number, since it uses less digits than its factorization.

23420231340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35485222 (or 35485220 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 23420231340 its reverse (4313202432), we get a palindrome (27733433772).

The spelling of 23420231340 in words is "twenty-three billion, four hundred twenty million, two hundred thirty-one thousand, three hundred forty".