233123222011 has 4 divisors (see below), whose sum is σ = 233128255672. Its totient is φ = 233118188352.

The previous prime is 233123221937. The next prime is 233123222039. The reversal of 233123222011 is 110222321332.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 233123222011 - 2¹⁹ = 233122697723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (233123222041) 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, 2446710 + ... + 2540203.

It is an arithmetic number, because the mean of its divisors is an integer number (58282063918).

Almost surely, 2^233123222011 is an apocalyptic number.

233123222011 is a deficient number, since it is larger than the sum of its proper divisors (5033661).

233123222011 is an equidigital number, since it uses as much as digits as its factorization.

233123222011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5033660.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 233123222011 its reverse (110222321332), we get a palindrome (343345543343).

The spelling of 233123222011 in words is "two hundred thirty-three billion, one hundred twenty-three million, two hundred twenty-two thousand, eleven".