21013436302 has 8 divisors (see below), whose sum is σ = 31520801376. Its totient is φ = 10506502512.

The previous prime is 21013436291. The next prime is 21013436303. The reversal of 21013436302 is 20363431012.

21013436302 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×21013436302² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21013436303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78123 + ... + 219385.

It is an arithmetic number, because the mean of its divisors is an integer number (3940100172).

Almost surely, 2^21013436302 is an apocalyptic number.

21013436302 is a deficient number, since it is larger than the sum of its proper divisors (10507365074).

21013436302 is a wasteful number, since it uses less digits than its factorization.

21013436302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215642.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 21013436302 its reverse (20363431012), we get a palindrome (41376867314).

The spelling of 21013436302 in words is "twenty-one billion, thirteen million, four hundred thirty-six thousand, three hundred two".