123780966843 has 4 divisors (see below), whose sum is σ = 165041289128. Its totient is φ = 82520644560.

The previous prime is 123780966809. The next prime is 123780966847. The reversal of 123780966843 is 348669087321.

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

It is not a de Polignac number, because 123780966843 - 2¹⁴ = 123780950459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123780966847) 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, 20630161138 + ... + 20630161143.

It is an arithmetic number, because the mean of its divisors is an integer number (41260322282).

Almost surely, 2^123780966843 is an apocalyptic number.

123780966843 is a deficient number, since it is larger than the sum of its proper divisors (41260322285).

123780966843 is an equidigital number, since it uses as much as digits as its factorization.

123780966843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41260322284.

The product of its (nonzero) digits is 10450944, while the sum is 57.

The spelling of 123780966843 in words is "one hundred twenty-three billion, seven hundred eighty million, nine hundred sixty-six thousand, eight hundred forty-three".