23431203340 has 24 divisors (see below), whose sum is σ = 49208457312. Its totient is φ = 9371923200.

The previous prime is 23431203337. The next prime is 23431203347. The reversal of 23431203340 is 4330213432.

It is not an unprimeable number, because it can be changed into a prime (23431203347) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 542212 + ... + 583828.

It is an arithmetic number, because the mean of its divisors is an integer number (2050352388).

Almost surely, 2^23431203340 is an apocalyptic number.

23431203340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23431203340 is an abundant number, since it is smaller than the sum of its proper divisors (25777253972).

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

23431203340 is a wasteful number, since it uses less digits than its factorization.

23431203340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69777 (or 69775 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 23431203340 its reverse (4330213432), we get a palindrome (27761416772).

The spelling of 23431203340 in words is "twenty-three billion, four hundred thirty-one million, two hundred three thousand, three hundred forty".