23112432142440 has 64 divisors (see below), whose sum is σ = 69346155715200. Its totient is φ = 6162527745792.

The previous prime is 23112432142427. The next prime is 23112432142441. The reversal of 23112432142440 is 4424123421132.

It is not an unprimeable number, because it can be changed into a prime (23112432142441) 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 15 ways as a sum of consecutive naturals, for example, 11361172 + ... + 13240131.

It is an arithmetic number, because the mean of its divisors is an integer number (1083533683050).

Almost surely, 2^{23112432142440} is an apocalyptic number.

23112432142440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23112432142440 is an abundant number, since it is smaller than the sum of its proper divisors (46233723572760).

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

23112432142440 is a wasteful number, since it uses less digits than its factorization.

23112432142440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24609146 (or 24609142 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 33.

Adding to 23112432142440 its reverse (4424123421132), we get a palindrome (27536555563572).

The spelling of 23112432142440 in words is "twenty-three trillion, one hundred twelve billion, four hundred thirty-two million, one hundred forty-two thousand, four hundred forty".