21102020314 has 8 divisors (see below), whose sum is σ = 31726133460. Its totient is φ = 10526642496.

The previous prime is 21102020273. The next prime is 21102020333. The reversal of 21102020314 is 41302020112.

It can be written as a sum of positive squares in 2 ways, for example, as 19117763289 + 1984257025 = 138267^2 + 44545^2 .

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

It is a super-2 number, since 2×21102020314² (a number of 21 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 12182749 + ... + 12184480.

Almost surely, 2^21102020314 is an apocalyptic number.

21102020314 is a deficient number, since it is larger than the sum of its proper divisors (10624113146).

21102020314 is a wasteful number, since it uses less digits than its factorization.

21102020314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24367664.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 21102020314 its reverse (41302020112), we get a palindrome (62404040426).

The spelling of 21102020314 in words is "twenty-one billion, one hundred two million, twenty thousand, three hundred fourteen".