123443132 has 6 divisors (see below), whose sum is σ = 216025488. Its totient is φ = 61721564.

The previous prime is 123443129. The next prime is 123443143. The reversal of 123443132 is 231344321.

It is a junction number, because it is equal to n+sod(n) for n = 123443098 and 123443107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15430388 + ... + 15430395.

It is an arithmetic number, because the mean of its divisors is an integer number (36004248).

Almost surely, 2^123443132 is an apocalyptic number.

It is an amenable number.

123443132 is a deficient number, since it is larger than the sum of its proper divisors (92582356).

123443132 is a wasteful number, since it uses less digits than its factorization.

123443132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30860787 (or 30860785 counting only the distinct ones).

The product of its digits is 1728, while the sum is 23.

The square root of 123443132 is about 11110.4964785558. The cubic root of 123443132 is about 497.9154977776.

Adding to 123443132 its reverse (231344321), we get a palindrome (354787453).

The spelling of 123443132 in words is "one hundred twenty-three million, four hundred forty-three thousand, one hundred thirty-two".