123323231011 has 4 divisors (see below), whose sum is σ = 129813927400. Its totient is φ = 116832534624.

The previous prime is 123323230969. The next prime is 123323231021. The reversal of 123323231011 is 110132323321.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123323231011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123323231021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3245348166 + ... + 3245348203.

It is an arithmetic number, because the mean of its divisors is an integer number (32453481850).

Almost surely, 2^123323231011 is an apocalyptic number.

123323231011 is a deficient number, since it is larger than the sum of its proper divisors (6490696389).

123323231011 is an equidigital number, since it uses as much as digits as its factorization.

123323231011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6490696388.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 123323231011 its reverse (110132323321), we get a palindrome (233455554332).

The spelling of 123323231011 in words is "one hundred twenty-three billion, three hundred twenty-three million, two hundred thirty-one thousand, eleven".