21341121024 has 80 divisors (see below), whose sum is σ = 59846482080. Its totient is φ = 6739292160.

The previous prime is 21341121001. The next prime is 21341121089. The reversal of 21341121024 is 42012114312.

It is a super-2 number, since 2×21341121024² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 336447 + ... + 394814.

It is an arithmetic number, because the mean of its divisors is an integer number (748081026).

Almost surely, 2^21341121024 is an apocalyptic number.

21341121024 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

21341121024 is an abundant number, since it is smaller than the sum of its proper divisors (38505361056).

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

21341121024 is an equidigital number, since it uses as much as digits as its factorization.

21341121024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731301 (or 731285 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 21341121024 its reverse (42012114312), we get a palindrome (63353235336).

The spelling of 21341121024 in words is "twenty-one billion, three hundred forty-one million, one hundred twenty-one thousand, twenty-four".