123340344432 has 20 divisors (see below), whose sum is σ = 318629223240. Its totient is φ = 41113448128.

The previous prime is 123340344431. The next prime is 123340344469. The reversal of 123340344432 is 234443043321.

It is a happy number.

123340344432 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 123340344393 and 123340344402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123340344431) 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, 1284795207 + ... + 1284795302.

It is an arithmetic number, because the mean of its divisors is an integer number (15931461162).

Almost surely, 2^123340344432 is an apocalyptic number.

123340344432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123340344432 is an abundant number, since it is smaller than the sum of its proper divisors (195288878808).

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

123340344432 is a wasteful number, since it uses less digits than its factorization.

123340344432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2569590520 (or 2569590514 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 33.

Adding to 123340344432 its reverse (234443043321), we get a palindrome (357783387753).

The spelling of 123340344432 in words is "one hundred twenty-three billion, three hundred forty million, three hundred forty-four thousand, four hundred thirty-two".