21013013202 has 8 divisors (see below), whose sum is σ = 42026026416. Its totient is φ = 7004337732.

The previous prime is 21013013167. The next prime is 21013013209. The reversal of 21013013202 is 20231031012.

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

21013013202 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (21013013209) 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, 1751084428 + ... + 1751084439.

It is an arithmetic number, because the mean of its divisors is an integer number (5253253302).

Almost surely, 2^21013013202 is an apocalyptic number.

21013013202 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21013013202 is a wasteful number, since it uses less digits than its factorization.

21013013202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3502168872.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 21013013202 its reverse (20231031012), we get a palindrome (41244044214).

The spelling of 21013013202 in words is "twenty-one billion, thirteen million, thirteen thousand, two hundred two".