125738323219 has 2 divisors, whose sum is σ = 125738323220. Its totient is φ = 125738323218.

The previous prime is 125738323189. The next prime is 125738323223. The reversal of 125738323219 is 912323837521.

It is a strong prime.

It is an emirp because it is prime and its reverse (912323837521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125738323219 - 2⁹ = 125738322707 is a prime.

It is a super-2 number, since 2×125738323219² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (125738323819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62869161609 + 62869161610.

It is an arithmetic number, because the mean of its divisors is an integer number (62869161610).

Almost surely, 2^125738323219 is an apocalyptic number.

125738323219 is a deficient number, since it is larger than the sum of its proper divisors (1).

125738323219 is an equidigital number, since it uses as much as digits as its factorization.

125738323219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 46.

The spelling of 125738323219 in words is "one hundred twenty-five billion, seven hundred thirty-eight million, three hundred twenty-three thousand, two hundred nineteen".