21010132033 has 4 divisors (see below), whose sum is σ = 22920144048. Its totient is φ = 19100120020.

The previous prime is 21010131991. The next prime is 21010132049. The reversal of 21010132033 is 33023101012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21010132033 - 2¹⁷ = 21010000961 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21010131998 and 21010132016.

It is not an unprimeable number, because it can be changed into a prime (21010132093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 955005991 + ... + 955006012.

It is an arithmetic number, because the mean of its divisors is an integer number (5730036012).

Almost surely, 2^21010132033 is an apocalyptic number.

It is an amenable number.

21010132033 is a deficient number, since it is larger than the sum of its proper divisors (1910012015).

21010132033 is a wasteful number, since it uses less digits than its factorization.

21010132033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1910012014.

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

Adding to 21010132033 its reverse (33023101012), we get a palindrome (54033233045).

The spelling of 21010132033 in words is "twenty-one billion, ten million, one hundred thirty-two thousand, thirty-three".