123527741378 has 4 divisors (see below), whose sum is σ = 185291612070. Its totient is φ = 61763870688.

The previous prime is 123527741369. The next prime is 123527741383. The reversal of 123527741378 is 873147725321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 873147725321 = 26183 ⋅33347887.

It can be written as a sum of positive squares in only one way, i.e., 117328856089 + 6198885289 = 342533^2 + 78733^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30881935343 + ... + 30881935346.

Almost surely, 2^123527741378 is an apocalyptic number.

123527741378 is a deficient number, since it is larger than the sum of its proper divisors (61763870692).

123527741378 is an equidigital number, since it uses as much as digits as its factorization.

123527741378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61763870691.

The product of its digits is 1975680, while the sum is 50.

The spelling of 123527741378 in words is "one hundred twenty-three billion, five hundred twenty-seven million, seven hundred forty-one thousand, three hundred seventy-eight".