123134103242 has 4 divisors (see below), whose sum is σ = 184701154866. Its totient is φ = 61567051620.

The previous prime is 123134103223. The next prime is 123134103349. The reversal of 123134103242 is 242301431321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 86189803561 + 36944299681 = 293581^2 + 192209^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30783525809 + ... + 30783525812.

Almost surely, 2^123134103242 is an apocalyptic number.

123134103242 is a deficient number, since it is larger than the sum of its proper divisors (61567051624).

123134103242 is an equidigital number, since it uses as much as digits as its factorization.

123134103242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61567051623.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 123134103242 its reverse (242301431321), we get a palindrome (365435534563).

The spelling of 123134103242 in words is "one hundred twenty-three billion, one hundred thirty-four million, one hundred three thousand, two hundred forty-two".