21432010311 has 6 divisors (see below), whose sum is σ = 30957348240. Its totient is φ = 14288006868.

The previous prime is 21432010307. The next prime is 21432010333. The reversal of 21432010311 is 11301023412.

21432010311 is a `hidden beast` number, since 21 + 4 + 320 + 10 + 311 = 666.

It is not a de Polignac number, because 21432010311 - 2² = 21432010307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21432010111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1190667231 + ... + 1190667248.

It is an arithmetic number, because the mean of its divisors is an integer number (5159558040).

Almost surely, 2^21432010311 is an apocalyptic number.

21432010311 is a deficient number, since it is larger than the sum of its proper divisors (9525337929).

21432010311 is a wasteful number, since it uses less digits than its factorization.

21432010311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2381334485 (or 2381334482 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 21432010311 its reverse (11301023412), we get a palindrome (32733033723).

The spelling of 21432010311 in words is "twenty-one billion, four hundred thirty-two million, ten thousand, three hundred eleven".