23321021211 has 12 divisors (see below), whose sum is σ = 35458862920. Its totient is φ = 14729065920.

The previous prime is 23321021179. The next prime is 23321021221. The reversal of 23321021211 is 11212012332.

23321021211 is a `hidden beast` number, since 233 + 210 + 212 + 11 = 666.

It is not a de Polignac number, because 23321021211 - 2⁵ = 23321021179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23321021221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68189950 + ... + 68190291.

Almost surely, 2^23321021211 is an apocalyptic number.

23321021211 is a deficient number, since it is larger than the sum of its proper divisors (12137841709).

23321021211 is a wasteful number, since it uses less digits than its factorization.

23321021211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136380266 (or 136380263 counting only the distinct ones).

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

Adding to 23321021211 its reverse (11212012332), we get a palindrome (34533033543).

The spelling of 23321021211 in words is "twenty-three billion, three hundred twenty-one million, twenty-one thousand, two hundred eleven".