21040302410 has 8 divisors (see below), whose sum is σ = 37872544356. Its totient is φ = 8416120960.

The previous prime is 21040302397. The next prime is 21040302427. The reversal of 21040302410 is 1420304012.

21040302410 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 21025870009 + 14432401 = 145003^2 + 3799^2 .

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

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, 1052015111 + ... + 1052015130.

Almost surely, 2^21040302410 is an apocalyptic number.

21040302410 is a deficient number, since it is larger than the sum of its proper divisors (16832241946).

21040302410 is a wasteful number, since it uses less digits than its factorization.

21040302410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2104030248.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 21040302410 its reverse (1420304012), we get a palindrome (22460606422).

The spelling of 21040302410 in words is "twenty-one billion, forty million, three hundred two thousand, four hundred ten".