123223131211 has 8 divisors (see below), whose sum is σ = 130487782464. Its totient is φ = 115960283520.

The previous prime is 123223131169. The next prime is 123223131247. The reversal of 123223131211 is 112131322321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123223131211 - 2¹⁷ = 123223000139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123223131011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 308940 + ... + 584713.

It is an arithmetic number, because the mean of its divisors is an integer number (16310972808).

Almost surely, 2^123223131211 is an apocalyptic number.

123223131211 is a deficient number, since it is larger than the sum of its proper divisors (7264651253).

123223131211 is an equidigital number, since it uses as much as digits as its factorization.

123223131211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901781.

The product of its digits is 432, while the sum is 22.

Adding to 123223131211 its reverse (112131322321), we get a palindrome (235354453532).

The spelling of 123223131211 in words is "one hundred twenty-three billion, two hundred twenty-three million, one hundred thirty-one thousand, two hundred eleven".