23121442221344 has 24 divisors (see below), whose sum is σ = 45573331673520. Its totient is φ = 11547262748736.

The previous prime is 23121442221287. The next prime is 23121442221347. The reversal of 23121442221344 is 44312224412132.

It is not an unprimeable number, because it can be changed into a prime (23121442221347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 420545894 + ... + 420600869.

It is an arithmetic number, because the mean of its divisors is an integer number (1898888819730).

Almost surely, 2^{23121442221344} is an apocalyptic number.

It is an amenable number.

23121442221344 is a deficient number, since it is larger than the sum of its proper divisors (22451889452176).

23121442221344 is an equidigital number, since it uses as much as digits as its factorization.

23121442221344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841147632 (or 841147624 counting only the distinct ones).

The product of its digits is 73728, while the sum is 35.

Adding to 23121442221344 its reverse (44312224412132), we get a palindrome (67433666633476).

The spelling of 23121442221344 in words is "twenty-three trillion, one hundred twenty-one billion, four hundred forty-two million, two hundred twenty-one thousand, three hundred forty-four".