21032311299 has 8 divisors (see below), whose sum is σ = 28305167040. Its totient is φ = 13890498216.

The previous prime is 21032311297. The next prime is 21032311343. The reversal of 21032311299 is 99211323012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21032311299 - 2¹ = 21032311297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21032311297) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32760289 + ... + 32760930.

It is an arithmetic number, because the mean of its divisors is an integer number (3538145880).

Almost surely, 2^21032311299 is an apocalyptic number.

21032311299 is a deficient number, since it is larger than the sum of its proper divisors (7272855741).

21032311299 is a wasteful number, since it uses less digits than its factorization.

21032311299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65521329.

The product of its (nonzero) digits is 5832, while the sum is 33.

The spelling of 21032311299 in words is "twenty-one billion, thirty-two million, three hundred eleven thousand, two hundred ninety-nine".