21032330101 has 16 divisors (see below), whose sum is σ = 22007483568. Its totient is φ = 20081152000.

The previous prime is 21032330087. The next prime is 21032330107. The reversal of 21032330101 is 10103323012.

It can be written as a sum of positive squares in 8 ways, for example, as 1613628900 + 19418701201 = 40170^2 + 139351^2 .

It is a cyclic number.

It is not a de Polignac number, because 21032330101 - 2¹⁵ = 21032297333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21032330107) 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, 859305 + ... + 883441.

It is an arithmetic number, because the mean of its divisors is an integer number (1375467723).

Almost surely, 2^21032330101 is an apocalyptic number.

It is an amenable number.

21032330101 is a deficient number, since it is larger than the sum of its proper divisors (975153467).

21032330101 is a wasteful number, since it uses less digits than its factorization.

21032330101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24632.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 21032330101 its reverse (10103323012), we get a palindrome (31135653113).

The spelling of 21032330101 in words is "twenty-one billion, thirty-two million, three hundred thirty thousand, one hundred one".