123134650977947 has 8 divisors (see below), whose sum is σ = 140742458277600. Its totient is φ = 105531129396864.

The previous prime is 123134650977941. The next prime is 123134650977977. The reversal of 123134650977947 is 749779056431321.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123134650977947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123134650977941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1071368072 + ... + 1071482997.

It is an arithmetic number, because the mean of its divisors is an integer number (17592807284700).

Almost surely, 2^{123134650977947} is an apocalyptic number.

123134650977947 is a deficient number, since it is larger than the sum of its proper divisors (17607807299653).

123134650977947 is an equidigital number, since it uses as much as digits as its factorization.

123134650977947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2142859285.

The product of its (nonzero) digits is 240045120, while the sum is 68.

The spelling of 123134650977947 in words is "one hundred twenty-three trillion, one hundred thirty-four billion, six hundred fifty million, nine hundred seventy-seven thousand, nine hundred forty-seven".