123031223321312 has 24 divisors (see below), whose sum is σ = 242620745445792. Its totient is φ = 61413256224000.

The previous prime is 123031223321299. The next prime is 123031223321317. The reversal of 123031223321312 is 213123322130321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123031223321317) 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, 3198587864 + ... + 3198626327.

It is an arithmetic number, because the mean of its divisors is an integer number (10109197726908).

Almost surely, 2^{123031223321312} is an apocalyptic number.

It is an amenable number.

123031223321312 is a deficient number, since it is larger than the sum of its proper divisors (119589522124480).

123031223321312 is an equidigital number, since it uses as much as digits as its factorization.

123031223321312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6397214802 (or 6397214794 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 123031223321312 its reverse (213123322130321), we get a palindrome (336154545451633).

The spelling of 123031223321312 in words is "one hundred twenty-three trillion, thirty-one billion, two hundred twenty-three million, three hundred twenty-one thousand, three hundred twelve".