123313211232 has 48 divisors (see below), whose sum is σ = 328256312832. Its totient is φ = 40525466240.

The previous prime is 123313211221. The next prime is 123313211249. The reversal of 123313211232 is 232112313321.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×123313211232² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9039048 + ... + 9052679.

It is an arithmetic number, because the mean of its divisors is an integer number (6838673184).

Almost surely, 2^123313211232 is an apocalyptic number.

123313211232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123313211232 is an abundant number, since it is smaller than the sum of its proper divisors (204943101600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123313211232 is a wasteful number, since it uses less digits than its factorization.

123313211232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18091811 (or 18091803 counting only the distinct ones).

The product of its digits is 1296, while the sum is 24.

Adding to 123313211232 its reverse (232112313321), we get a palindrome (355425524553).

The spelling of 123313211232 in words is "one hundred twenty-three billion, three hundred thirteen million, two hundred eleven thousand, two hundred thirty-two".