23043424221440 has 72 divisors (see below), whose sum is σ = 63081373830720. Its totient is φ = 7900602587136.

The previous prime is 23043424221439. The next prime is 23043424221457. The reversal of 23043424221440 is 4412242434032.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 23043424221440.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1285896410 + ... + 1285914329.

Almost surely, 2^{23043424221440} is an apocalyptic number.

23043424221440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23043424221440 is an abundant number, since it is smaller than the sum of its proper divisors (40037949609280).

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

23043424221440 is an equidigital number, since it uses as much as digits as its factorization.

23043424221440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2571810767 (or 2571810753 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 35.

Adding to 23043424221440 its reverse (4412242434032), we get a palindrome (27455666655472).

The spelling of 23043424221440 in words is "twenty-three trillion, forty-three billion, four hundred twenty-four million, two hundred twenty-one thousand, four hundred forty".