123352442242 has 8 divisors (see below), whose sum is σ = 185119861500. Its totient is φ = 61645821744.

The previous prime is 123352442207. The next prime is 123352442309. The reversal of 123352442242 is 242244253321.

It can be written as a sum of positive squares in 2 ways, for example, as 71432718361 + 51919723881 = 267269^2 + 227859^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 123352442198 and 123352442207.

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, 15194617 + ... + 15202732.

Almost surely, 2^123352442242 is an apocalyptic number.

123352442242 is a deficient number, since it is larger than the sum of its proper divisors (61767419258).

123352442242 is a wasteful number, since it uses less digits than its factorization.

123352442242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30399380.

The product of its digits is 92160, while the sum is 34.

Adding to 123352442242 its reverse (242244253321), we get a palindrome (365596695563).

The spelling of 123352442242 in words is "one hundred twenty-three billion, three hundred fifty-two million, four hundred forty-two thousand, two hundred forty-two".