123231341982 has 128 divisors (see below), whose sum is σ = 298113177600. Its totient is φ = 33200234496.

The previous prime is 123231341971. The next prime is 123231341983. The reversal of 123231341982 is 289143132321.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 123231341982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123231341983) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 25203394 + ... + 25208282.

It is an arithmetic number, because the mean of its divisors is an integer number (2329009200).

Almost surely, 2^123231341982 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123231341982, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149056588800).

123231341982 is an abundant number, since it is smaller than the sum of its proper divisors (174881835618).

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

123231341982 is a wasteful number, since it uses less digits than its factorization.

123231341982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5290.

The product of its digits is 62208, while the sum is 39.

The spelling of 123231341982 in words is "one hundred twenty-three billion, two hundred thirty-one million, three hundred forty-one thousand, nine hundred eighty-two".