123123331211332 has 12 divisors (see below), whose sum is σ = 215579893068540. Its totient is φ = 61529076048896.

The previous prime is 123123331211323. The next prime is 123123331211339. The reversal of 123123331211332 is 233112133321321.

It can be written as a sum of positive squares in 2 ways, for example, as 62864378834436 + 60258952376896 = 7928706^2 + 7762664^2 .

It is a junction number, because it is equal to n+sod(n) for n = 123123331211294 and 123123331211303.

It is not an unprimeable number, because it can be changed into a prime (123123331211339) 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, 8147380693 + ... + 8147395804.

It is an arithmetic number, because the mean of its divisors is an integer number (17964991089045).

Almost surely, 2^{123123331211332} is an apocalyptic number.

It is an amenable number.

123123331211332 is a deficient number, since it is larger than the sum of its proper divisors (92456561857208).

123123331211332 is a wasteful number, since it uses less digits than its factorization.

123123331211332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16294778390 (or 16294778388 counting only the distinct ones).

The product of its digits is 11664, while the sum is 31.

Adding to 123123331211332 its reverse (233112133321321), we get a palindrome (356235464532653).

The spelling of 123123331211332 in words is "one hundred twenty-three trillion, one hundred twenty-three billion, three hundred thirty-one million, two hundred eleven thousand, three hundred thirty-two".