139231370423 has 2 divisors, whose sum is σ = 139231370424. Its totient is φ = 139231370422.

The previous prime is 139231370419. The next prime is 139231370437. The reversal of 139231370423 is 324073132931.

It is a happy number.

139231370423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 139231370423 - 2² = 139231370419 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139231370413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69615685211 + 69615685212.

It is an arithmetic number, because the mean of its divisors is an integer number (69615685212).

Almost surely, 2^139231370423 is an apocalyptic number.

139231370423 is a deficient number, since it is larger than the sum of its proper divisors (1).

139231370423 is an equidigital number, since it uses as much as digits as its factorization.

139231370423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 38.

The spelling of 139231370423 in words is "one hundred thirty-nine billion, two hundred thirty-one million, three hundred seventy thousand, four hundred twenty-three".