21430334214 has 48 divisors (see below), whose sum is σ = 48945027600. Its totient is φ = 6950354688.

The previous prime is 21430334207. The next prime is 21430334267. The reversal of 21430334214 is 41243303412.

21430334214 is a `hidden beast` number, since 2 + 1 + 4 + 303 + 342 + 14 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 71019 + ... + 218870.

It is an arithmetic number, because the mean of its divisors is an integer number (1019688075).

Almost surely, 2^21430334214 is an apocalyptic number.

21430334214 is an abundant number, since it is smaller than the sum of its proper divisors (27514693386).

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

21430334214 is a wasteful number, since it uses less digits than its factorization.

21430334214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289974 (or 289931 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 21430334214 its reverse (41243303412), we get a palindrome (62673637626).

The spelling of 21430334214 in words is "twenty-one billion, four hundred thirty million, three hundred thirty-four thousand, two hundred fourteen".