21344131195 has 8 divisors (see below), whose sum is σ = 25613898480. Its totient is φ = 17074677600.

The previous prime is 21344131141. The next prime is 21344131201. The reversal of 21344131195 is 59113144312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-21344131195 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21344131195.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 114361 + ... + 236149.

It is an arithmetic number, because the mean of its divisors is an integer number (3201737310).

Almost surely, 2^21344131195 is an apocalyptic number.

21344131195 is a deficient number, since it is larger than the sum of its proper divisors (4269767285).

21344131195 is a wasteful number, since it uses less digits than its factorization.

21344131195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156845.

The product of its digits is 12960, while the sum is 34.

The spelling of 21344131195 in words is "twenty-one billion, three hundred forty-four million, one hundred thirty-one thousand, one hundred ninety-five".