123211212233 has 4 divisors (see below), whose sum is σ = 123311303808. Its totient is φ = 123111120660.

The previous prime is 123211212211. The next prime is 123211212253. The reversal of 123211212233 is 332212112321.

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 123211212233 - 2⁶ = 123211212169 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123211212199 and 123211212208.

It is not an unprimeable number, because it can be changed into a prime (123211212253) 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, 50043941 + ... + 50046402.

It is an arithmetic number, because the mean of its divisors is an integer number (30827825952).

Almost surely, 2^123211212233 is an apocalyptic number.

It is an amenable number.

123211212233 is a deficient number, since it is larger than the sum of its proper divisors (100091575).

123211212233 is a wasteful number, since it uses less digits than its factorization.

123211212233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100091574.

The product of its digits is 864, while the sum is 23.

Adding to 123211212233 its reverse (332212112321), we get a palindrome (455423324554).

The spelling of 123211212233 in words is "one hundred twenty-three billion, two hundred eleven million, two hundred twelve thousand, two hundred thirty-three".