21020302314 has 48 divisors (see below), whose sum is σ = 49741159104. Its totient is φ = 6362505600.

The previous prime is 21020302213. The next prime is 21020302333. The reversal of 21020302314 is 41320302012.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 114187 + ... + 234689.

It is an arithmetic number, because the mean of its divisors is an integer number (1036274148).

Almost surely, 2^21020302314 is an apocalyptic number.

21020302314 is an abundant number, since it is smaller than the sum of its proper divisors (28720856790).

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

21020302314 is a wasteful number, since it uses less digits than its factorization.

21020302314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121403 (or 121400 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 21020302314 its reverse (41320302012), we get a palindrome (62340604326).

The spelling of 21020302314 in words is "twenty-one billion, twenty million, three hundred two thousand, three hundred fourteen".