2321144043020 has 144 divisors (see below), whose sum is σ = 5507734688064. Its totient is φ = 820760371200.

The previous prime is 2321144042969. The next prime is 2321144043061. The reversal of 2321144043020 is 203404411232.

It is a super-2 number, since 2×2321144043020² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12450332 + ... + 12635388.

It is an arithmetic number, because the mean of its divisors is an integer number (38248157556).

Almost surely, 2^{2321144043020} is an apocalyptic number.

2321144043020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2321144043020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2753867344032).

2321144043020 is an abundant number, since it is smaller than the sum of its proper divisors (3186590645044).

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

2321144043020 is a wasteful number, since it uses less digits than its factorization.

2321144043020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185232 (or 185219 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 2321144043020 its reverse (203404411232), we get a palindrome (2524548454252).

The spelling of 2321144043020 in words is "two trillion, three hundred twenty-one billion, one hundred forty-four million, forty-three thousand, twenty".