21032230311 has 16 divisors (see below), whose sum is σ = 31189478400. Its totient is φ = 14007708504.

The previous prime is 21032230301. The next prime is 21032230327. The reversal of 21032230311 is 11303223012.

21032230311 is a `hidden beast` number, since 2 + 1 + 0 + 322 + 30 + 311 = 666.

It is not a de Polignac number, because 21032230311 - 2⁵ = 21032230279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21032230301) 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, 354711 + ... + 409736.

It is an arithmetic number, because the mean of its divisors is an integer number (1949342400).

Almost surely, 2^21032230311 is an apocalyptic number.

21032230311 is a deficient number, since it is larger than the sum of its proper divisors (10157248089).

21032230311 is a wasteful number, since it uses less digits than its factorization.

21032230311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765475 (or 765469 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 21032230311 its reverse (11303223012), we get a palindrome (32335453323).

The spelling of 21032230311 in words is "twenty-one billion, thirty-two million, two hundred thirty thousand, three hundred eleven".