123321203311009 has 4 divisors (see below), whose sum is σ = 134532221793840. Its totient is φ = 112110184828180.

The previous prime is 123321203310971. The next prime is 123321203311013. The reversal of 123321203311009 is 900113302123321.

It is a happy number.

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 not a de Polignac number, because 123321203311009 - 2¹⁵ = 123321203278241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123321203311049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5605509241399 + ... + 5605509241420.

It is an arithmetic number, because the mean of its divisors is an integer number (33633055448460).

Almost surely, 2^{123321203311009} is an apocalyptic number.

It is an amenable number.

123321203311009 is a deficient number, since it is larger than the sum of its proper divisors (11211018482831).

123321203311009 is a wasteful number, since it uses less digits than its factorization.

123321203311009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11211018482830.

The product of its (nonzero) digits is 5832, while the sum is 31.

The spelling of 123321203311009 in words is "one hundred twenty-three trillion, three hundred twenty-one billion, two hundred three million, three hundred eleven thousand, nine".