21032133001 has 6 divisors (see below), whose sum is σ = 23117964506. Its totient is φ = 19120120800.

The previous prime is 21032132959. The next prime is 21032133077. The reversal of 21032133001 is 10033123012.

It can be written as a sum of positive squares in only one way, i.e., 19824640000 + 1207493001 = 140800^2 + 34749^2 .

It is not a de Polignac number, because 21032133001 - 2⁷ = 21032132873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21032133901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 86909520 + ... + 86909761.

Almost surely, 2^21032133001 is an apocalyptic number.

It is an amenable number.

21032133001 is a deficient number, since it is larger than the sum of its proper divisors (2085831505).

21032133001 is a wasteful number, since it uses less digits than its factorization.

21032133001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173819303 (or 173819292 counting only the distinct ones).

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

Adding to 21032133001 its reverse (10033123012), we get a palindrome (31065256013).

The spelling of 21032133001 in words is "twenty-one billion, thirty-two million, one hundred thirty-three thousand, one".