21231201314 has 16 divisors (see below), whose sum is σ = 32354755776. Its totient is φ = 10447542000.

The previous prime is 21231201301. The next prime is 21231201317. The reversal of 21231201314 is 41310213212.

It is not an unprimeable number, because it can be changed into a prime (21231201317) 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 7 ways as a sum of consecutive naturals, for example, 280952 + ... + 348419.

It is an arithmetic number, because the mean of its divisors is an integer number (2022172236).

Almost surely, 2^21231201314 is an apocalyptic number.

21231201314 is a deficient number, since it is larger than the sum of its proper divisors (11123554462).

21231201314 is a wasteful number, since it uses less digits than its factorization.

21231201314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629641.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 21231201314 its reverse (41310213212), we get a palindrome (62541414526).

The spelling of 21231201314 in words is "twenty-one billion, two hundred thirty-one million, two hundred one thousand, three hundred fourteen".