21144131314 has 8 divisors (see below), whose sum is σ = 31735227888. Its totient is φ = 10565722020.

The previous prime is 21144131299. The next prime is 21144131341. The reversal of 21144131314 is 41313144112.

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

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 3 ways as a sum of consecutive naturals, for example, 3167652 + ... + 3174319.

It is an arithmetic number, because the mean of its divisors is an integer number (3966903486).

Almost surely, 2^21144131314 is an apocalyptic number.

21144131314 is a deficient number, since it is larger than the sum of its proper divisors (10591096574).

21144131314 is a wasteful number, since it uses less digits than its factorization.

21144131314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6343640.

The product of its digits is 1152, while the sum is 25.

Adding to 21144131314 its reverse (41313144112), we get a palindrome (62457275426).

The spelling of 21144131314 in words is "twenty-one billion, one hundred forty-four million, one hundred thirty-one thousand, three hundred fourteen".