21344114332 has 12 divisors (see below), whose sum is σ = 37802227176. Its totient is φ = 10543478000.

The previous prime is 21344114321. The next prime is 21344114339. The reversal of 21344114332 is 23341144312.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 21344114332.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21344114339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32144419 + ... + 32145082.

It is an arithmetic number, because the mean of its divisors is an integer number (3150185598).

Almost surely, 2^21344114332 is an apocalyptic number.

It is an amenable number.

21344114332 is a deficient number, since it is larger than the sum of its proper divisors (16458112844).

21344114332 is a wasteful number, since it uses less digits than its factorization.

21344114332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64289588 (or 64289586 counting only the distinct ones).

The product of its digits is 6912, while the sum is 28.

Adding to 21344114332 its reverse (23341144312), we get a palindrome (44685258644).

The spelling of 21344114332 in words is "twenty-one billion, three hundred forty-four million, one hundred fourteen thousand, three hundred thirty-two".