21306253114 has 8 divisors (see below), whose sum is σ = 32171031648. Its totient is φ = 10582575900.

The previous prime is 21306253109. The next prime is 21306253211. The reversal of 21306253114 is 41135260312.

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 (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35274952 + ... + 35275555.

It is an arithmetic number, because the mean of its divisors is an integer number (4021378956).

Almost surely, 2^21306253114 is an apocalyptic number.

21306253114 is a deficient number, since it is larger than the sum of its proper divisors (10864778534).

21306253114 is a wasteful number, since it uses less digits than its factorization.

21306253114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70550660.

The product of its (nonzero) digits is 4320, while the sum is 28.

The spelling of 21306253114 in words is "twenty-one billion, three hundred six million, two hundred fifty-three thousand, one hundred fourteen".