20013721262330 has 16 divisors (see below), whose sum is σ = 36024771008160. Its totient is φ = 8005472341392.

The previous prime is 20013721262309. The next prime is 20013721262351. The reversal of 20013721262330 is 3326212731002.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20013721262309) and next prime (20013721262351).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4047917 + ... + 7510863.

It is an arithmetic number, because the mean of its divisors is an integer number (2251548188010).

Almost surely, 2^{20013721262330} is an apocalyptic number.

20013721262330 is a deficient number, since it is larger than the sum of its proper divisors (16011049745830).

20013721262330 is a wasteful number, since it uses less digits than its factorization.

20013721262330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4040893.

The product of its (nonzero) digits is 18144, while the sum is 32.

Adding to 20013721262330 its reverse (3326212731002), we get a palindrome (23339933993332).

The spelling of 20013721262330 in words is "twenty trillion, thirteen billion, seven hundred twenty-one million, two hundred sixty-two thousand, three hundred thirty".