23011221233 has 64 divisors (see below), whose sum is σ = 34435860480. Its totient is φ = 14757811200.

The previous prime is 23011221209. The next prime is 23011221287. The reversal of 23011221233 is 33212211032.

It is not a de Polignac number, because 23011221233 - 2⁶ = 23011221169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23011221203) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 287738 + ... + 358908.

It is an arithmetic number, because the mean of its divisors is an integer number (538060320).

Almost surely, 2^23011221233 is an apocalyptic number.

It is an amenable number.

23011221233 is a deficient number, since it is larger than the sum of its proper divisors (11424639247).

23011221233 is a wasteful number, since it uses less digits than its factorization.

23011221233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71238.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 23011221233 its reverse (33212211032), we get a palindrome (56223432265).

The spelling of 23011221233 in words is "twenty-three billion, eleven million, two hundred twenty-one thousand, two hundred thirty-three".