123012204432778 has 16 divisors (see below), whose sum is σ = 184720117146336. Its totient is φ = 61438848685200.

The previous prime is 123012204432749. The next prime is 123012204432779. The reversal of 123012204432778 is 877234402210321.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (123012204432779) 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, 10649800 + ... + 18958972.

It is an arithmetic number, because the mean of its divisors is an integer number (11545007321646).

Almost surely, 2^{123012204432778} is an apocalyptic number.

123012204432778 is a deficient number, since it is larger than the sum of its proper divisors (61707912713558).

123012204432778 is a wasteful number, since it uses less digits than its factorization.

123012204432778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8317269.

The product of its (nonzero) digits is 903168, while the sum is 46.

The spelling of 123012204432778 in words is "one hundred twenty-three trillion, twelve billion, two hundred four million, four hundred thirty-two thousand, seven hundred seventy-eight".