21341343122 has 16 divisors (see below), whose sum is σ = 34983378144. Its totient is φ = 9683616000.

The previous prime is 21341343071. The next prime is 21341343139. The reversal of 21341343122 is 22134314312.

It is a junction number, because it is equal to n+sod(n) for n = 21341343091 and 21341343100.

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, 836879 + ... + 862002.

It is an arithmetic number, because the mean of its divisors is an integer number (2186461134).

Almost surely, 2^21341343122 is an apocalyptic number.

21341343122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21341343122 is a deficient number, since it is larger than the sum of its proper divisors (13642035022).

21341343122 is a wasteful number, since it uses less digits than its factorization.

21341343122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1699465.

The product of its digits is 3456, while the sum is 26.

Adding to 21341343122 its reverse (22134314312), we get a palindrome (43475657434).

It can be divided in two parts, 21341 and 343122, that added together give a palindrome (364463).

The spelling of 21341343122 in words is "twenty-one billion, three hundred forty-one million, three hundred forty-three thousand, one hundred twenty-two".