21431313414 has 48 divisors (see below), whose sum is σ = 53139670272. Its totient is φ = 6114964464.

The previous prime is 21431313389. The next prime is 21431313457. The reversal of 21431313414 is 41431313412.

21431313414 is a `hidden beast` number, since 2 + 1 + 4 + 313 + 1 + 341 + 4 = 666.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 20844 + ... + 208079.

It is an arithmetic number, because the mean of its divisors is an integer number (1107076464).

Almost surely, 2^21431313414 is an apocalyptic number.

21431313414 is an abundant number, since it is smaller than the sum of its proper divisors (31708356858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21431313414 is a wasteful number, since it uses less digits than its factorization.

21431313414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229681 (or 229678 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

Adding to 21431313414 its reverse (41431313412), we get a palindrome (62862626826).

The spelling of 21431313414 in words is "twenty-one billion, four hundred thirty-one million, three hundred thirteen thousand, four hundred fourteen".