21301111030 has 32 divisors (see below), whose sum is σ = 39673411200. Its totient is φ = 8224712832.

The previous prime is 21301111019. The next prime is 21301111081. The reversal of 21301111030 is 3011110312.

It is a super-2 number, since 2×21301111030² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21301111030.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2335459 + ... + 2344561.

It is an arithmetic number, because the mean of its divisors is an integer number (1239794100).

Almost surely, 2^21301111030 is an apocalyptic number.

21301111030 is a deficient number, since it is larger than the sum of its proper divisors (18372300170).

21301111030 is a wasteful number, since it uses less digits than its factorization.

21301111030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17208.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 21301111030 its reverse (3011110312), we get a palindrome (24312221342).

The spelling of 21301111030 in words is "twenty-one billion, three hundred one million, one hundred eleven thousand, thirty".