21112614533 has 8 divisors (see below), whose sum is σ = 21140886648. Its totient is φ = 21084364224.

The previous prime is 21112614463. The next prime is 21112614547. The reversal of 21112614533 is 33541621112.

It can be written as a sum of positive squares in 4 ways, for example, as 16149834724 + 4962779809 = 127082^2 + 70447^2 .

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 21112614533 - 2⁸ = 21112614277 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21112614496 and 21112614505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21112614583) 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, 2804891 + ... + 2812407.

It is an arithmetic number, because the mean of its divisors is an integer number (2642610831).

Almost surely, 2^21112614533 is an apocalyptic number.

It is an amenable number.

21112614533 is a deficient number, since it is larger than the sum of its proper divisors (28272115).

21112614533 is a wasteful number, since it uses less digits than its factorization.

21112614533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10903.

The product of its digits is 4320, while the sum is 29.

The spelling of 21112614533 in words is "twenty-one billion, one hundred twelve million, six hundred fourteen thousand, five hundred thirty-three".