123034343242 has 16 divisors (see below), whose sum is σ = 190600376832. Its totient is φ = 59502875760.

The previous prime is 123034343213. The next prime is 123034343249. The reversal of 123034343242 is 242343430321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (123034343249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 373038 + ... + 620665.

It is an arithmetic number, because the mean of its divisors is an integer number (11912523552).

Almost surely, 2^123034343242 is an apocalyptic number.

123034343242 is a deficient number, since it is larger than the sum of its proper divisors (67566033590).

123034343242 is a wasteful number, since it uses less digits than its factorization.

123034343242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995733.

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 123034343242 its reverse (242343430321), we get a palindrome (365377773563).

The spelling of 123034343242 in words is "one hundred twenty-three billion, thirty-four million, three hundred forty-three thousand, two hundred forty-two".