21174813341 has 4 divisors (see below), whose sum is σ = 23099796384. Its totient is φ = 19249830300.

The previous prime is 21174813337. The next prime is 21174813343. The reversal of 21174813341 is 14331847112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21174813341 - 2² = 21174813337 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21174813343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 962491505 + ... + 962491526.

It is an arithmetic number, because the mean of its divisors is an integer number (5774949096).

Almost surely, 2^21174813341 is an apocalyptic number.

It is an amenable number.

21174813341 is a deficient number, since it is larger than the sum of its proper divisors (1924983043).

21174813341 is a wasteful number, since it uses less digits than its factorization.

21174813341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1924983042.

The product of its digits is 16128, while the sum is 35.

The spelling of 21174813341 in words is "twenty-one billion, one hundred seventy-four million, eight hundred thirteen thousand, three hundred forty-one".