23243312140 has 24 divisors (see below), whose sum is σ = 48912877440. Its totient is φ = 9277911168.

The previous prime is 23243312119. The next prime is 23243312143. The reversal of 23243312140 is 4121334232.

It is not an unprimeable number, because it can be changed into a prime (23243312143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1203537 + ... + 1222696.

It is an arithmetic number, because the mean of its divisors is an integer number (2038036560).

Almost surely, 2^23243312140 is an apocalyptic number.

23243312140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23243312140 is an abundant number, since it is smaller than the sum of its proper divisors (25669565300).

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

23243312140 is a wasteful number, since it uses less digits than its factorization.

23243312140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2426721 (or 2426719 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 23243312140 its reverse (4121334232), we get a palindrome (27364646372).

The spelling of 23243312140 in words is "twenty-three billion, two hundred forty-three million, three hundred twelve thousand, one hundred forty".