123243442032 has 20 divisors (see below), whose sum is σ = 318378892040. Its totient is φ = 41081147328.

The previous prime is 123243441947. The next prime is 123243442067. The reversal of 123243442032 is 230244342321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1283785807 + ... + 1283785902.

It is an arithmetic number, because the mean of its divisors is an integer number (15918944602).

Almost surely, 2^123243442032 is an apocalyptic number.

123243442032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123243442032 is an abundant number, since it is smaller than the sum of its proper divisors (195135450008).

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

123243442032 is a wasteful number, since it uses less digits than its factorization.

123243442032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2567571720 (or 2567571714 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 123243442032 its reverse (230244342321), we get a palindrome (353487784353).

The spelling of 123243442032 in words is "one hundred twenty-three billion, two hundred forty-three million, four hundred forty-two thousand, thirty-two".