21012021314 has 16 divisors (see below), whose sum is σ = 31655753856. Its totient is φ = 10460156400.

The previous prime is 21012021313. The next prime is 21012021347. The reversal of 21012021314 is 41312021012.

21012021314 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 21012021292 and 21012021301.

It is not an unprimeable number, because it can be changed into a prime (21012021313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 839144 + ... + 863820.

It is an arithmetic number, because the mean of its divisors is an integer number (1978484616).

Almost surely, 2^21012021314 is an apocalyptic number.

21012021314 is a deficient number, since it is larger than the sum of its proper divisors (10643732542).

21012021314 is a wasteful number, since it uses less digits than its factorization.

21012021314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26521.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 21012021314 its reverse (41312021012), we get a palindrome (62324042326).

The spelling of 21012021314 in words is "twenty-one billion, twelve million, twenty-one thousand, three hundred fourteen".