21003420314 has 8 divisors (see below), whose sum is σ = 31513173120. Its totient is φ = 10499029276.

The previous prime is 21003420307. The next prime is 21003420329. The reversal of 21003420314 is 41302430012.

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

It is a super-2 number, since 2×21003420314² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1330634 + ... + 1346325.

It is an arithmetic number, because the mean of its divisors is an integer number (3939146640).

Almost surely, 2^21003420314 is an apocalyptic number.

21003420314 is a deficient number, since it is larger than the sum of its proper divisors (10509752806).

21003420314 is a wasteful number, since it uses less digits than its factorization.

21003420314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2680884.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 21003420314 its reverse (41302430012), we get a palindrome (62305850326).

The spelling of 21003420314 in words is "twenty-one billion, three million, four hundred twenty thousand, three hundred fourteen".