21233032297 has 4 divisors (see below), whose sum is σ = 21241424016. Its totient is φ = 21224640580.

The previous prime is 21233032259. The next prime is 21233032321. The reversal of 21233032297 is 79223033212.

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 21233032297 - 2¹¹ = 21233030249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21233032207) 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, 4192063 + ... + 4197124.

It is an arithmetic number, because the mean of its divisors is an integer number (5310356004).

Almost surely, 2^21233032297 is an apocalyptic number.

It is an amenable number.

21233032297 is a deficient number, since it is larger than the sum of its proper divisors (8391719).

21233032297 is an equidigital number, since it uses as much as digits as its factorization.

21233032297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8391718.

The product of its (nonzero) digits is 27216, while the sum is 34.

The spelling of 21233032297 in words is "twenty-one billion, two hundred thirty-three million, thirty-two thousand, two hundred ninety-seven".