21143110113333 has 12 divisors (see below), whose sum is σ = 32889282398700. Its totient is φ = 13011144685056.

The previous prime is 21143110113233. The next prime is 21143110113371. The reversal of 21143110113333 is 33331101134112.

21143110113333 is a `hidden beast` number, since 2 + 1 + 1 + 4 + 311 + 0 + 1 + 13 + 333 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8268741793764 + 12874368319569 = 2875542^2 + 3588087^2 .

It is not a de Polignac number, because 21143110113333 - 2²⁸ = 21142841677877 is a prime.

It is a super-2 number, since 2×21143110113333² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 21143110113297 and 21143110113306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21143110113233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90355171308 + ... + 90355171541.

It is an arithmetic number, because the mean of its divisors is an integer number (2740773533225).

Almost surely, 2^{21143110113333} is an apocalyptic number.

It is an amenable number.

21143110113333 is a deficient number, since it is larger than the sum of its proper divisors (11746172285367).

21143110113333 is a wasteful number, since it uses less digits than its factorization.

21143110113333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180710342868 (or 180710342865 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

Adding to 21143110113333 its reverse (33331101134112), we get a palindrome (54474211247445).

The spelling of 21143110113333 in words is "twenty-one trillion, one hundred forty-three billion, one hundred ten million, one hundred thirteen thousand, three hundred thirty-three".