21113000133331 has 16 divisors (see below), whose sum is σ = 21427755987456. Its totient is φ = 20798734320000.

The previous prime is 21113000133233. The next prime is 21113000133359. The reversal of 21113000133331 is 13333100031112.

It is not a de Polignac number, because 21113000133331 - 2¹¹ = 21113000131283 is a prime.

It is a super-2 number, since 2×21113000133331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21113000133371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 472188066 + ... + 472232776.

It is an arithmetic number, because the mean of its divisors is an integer number (1339234749216).

Almost surely, 2^{21113000133331} is an apocalyptic number.

21113000133331 is a deficient number, since it is larger than the sum of its proper divisors (314755854125).

21113000133331 is a wasteful number, since it uses less digits than its factorization.

21113000133331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50034.

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 21113000133331 its reverse (13333100031112), we get a palindrome (34446100164443).

The spelling of 21113000133331 in words is "twenty-one trillion, one hundred thirteen billion, one hundred thirty-three thousand, three hundred thirty-one".