123302013243 has 4 divisors (see below), whose sum is σ = 164402684328. Its totient is φ = 82201342160.

The previous prime is 123302013239. The next prime is 123302013287. The reversal of 123302013243 is 342310203321.

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

It is a cyclic number.

It is not a de Polignac number, because 123302013243 - 2² = 123302013239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123302013203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20550335538 + ... + 20550335543.

It is an arithmetic number, because the mean of its divisors is an integer number (41100671082).

Almost surely, 2^123302013243 is an apocalyptic number.

123302013243 is a deficient number, since it is larger than the sum of its proper divisors (41100671085).

123302013243 is an equidigital number, since it uses as much as digits as its factorization.

123302013243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41100671084.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 123302013243 its reverse (342310203321), we get a palindrome (465612216564).

The spelling of 123302013243 in words is "one hundred twenty-three billion, three hundred two million, thirteen thousand, two hundred forty-three".