21301531214 has 8 divisors (see below), whose sum is σ = 32182169880. Its totient is φ = 10574141256.

The previous prime is 21301531151. The next prime is 21301531219. The reversal of 21301531214 is 41213510312.

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

It is a super-2 number, since 2×21301531214² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21301531214.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21301531219) by changing a digit.

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, 38311829 + ... + 38312384.

It is an arithmetic number, because the mean of its divisors is an integer number (4022771235).

Almost surely, 2^21301531214 is an apocalyptic number.

21301531214 is a deficient number, since it is larger than the sum of its proper divisors (10880638666).

21301531214 is a wasteful number, since it uses less digits than its factorization.

21301531214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76624354.

The product of its (nonzero) digits is 720, while the sum is 23.

The spelling of 21301531214 in words is "twenty-one billion, three hundred one million, five hundred thirty-one thousand, two hundred fourteen".