21102333043143 has 16 divisors (see below), whose sum is σ = 30698620617600. Its totient is φ = 12787493582880.

The previous prime is 21102333043081. The next prime is 21102333043147. The reversal of 21102333043143 is 34134033320112.

It is not a de Polignac number, because 21102333043143 - 2⁶ = 21102333043079 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21102333043143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21102333043147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44741113 + ... + 45210306.

It is an arithmetic number, because the mean of its divisors is an integer number (1918663788600).

Almost surely, 2^{21102333043143} is an apocalyptic number.

21102333043143 is a deficient number, since it is larger than the sum of its proper divisors (9596287574457).

21102333043143 is a wasteful number, since it uses less digits than its factorization.

21102333043143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89958542.

The product of its (nonzero) digits is 15552, while the sum is 30.

Adding to 21102333043143 its reverse (34134033320112), we get a palindrome (55236366363255).

The spelling of 21102333043143 in words is "twenty-one trillion, one hundred two billion, three hundred thirty-three million, forty-three thousand, one hundred forty-three".