21030111322133 has 8 divisors (see below), whose sum is σ = 21044161649280. Its totient is φ = 21016065340800.

The previous prime is 21030111322127. The next prime is 21030111322139. The reversal of 21030111322133 is 33122311103012.

It is an interprime number because it is at equal distance from previous prime (21030111322127) and next prime (21030111322139).

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

It is a cyclic number.

It is not a de Polignac number, because 21030111322133 - 2¹⁸ = 21030111059989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21030111322099 and 21030111322108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21030111322139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8624066 + ... + 10790492.

It is an arithmetic number, because the mean of its divisors is an integer number (2630520206160).

Almost surely, 2^{21030111322133} is an apocalyptic number.

It is an amenable number.

21030111322133 is a deficient number, since it is larger than the sum of its proper divisors (14050327147).

21030111322133 is a wasteful number, since it uses less digits than its factorization.

21030111322133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2172907.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 21030111322133 its reverse (33122311103012), we get a palindrome (54152422425145).

The spelling of 21030111322133 in words is "twenty-one trillion, thirty billion, one hundred eleven million, three hundred twenty-two thousand, one hundred thirty-three".