138186712303 has 2 divisors, whose sum is σ = 138186712304. Its totient is φ = 138186712302.

The previous prime is 138186712273. The next prime is 138186712343. The reversal of 138186712303 is 303217681831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 138186712303 - 2⁵ = 138186712271 is a prime.

It is a super-2 number, since 2×138186712303² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 138186712303.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138186712343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69093356151 + 69093356152.

It is an arithmetic number, because the mean of its divisors is an integer number (69093356152).

Almost surely, 2^138186712303 is an apocalyptic number.

138186712303 is a deficient number, since it is larger than the sum of its proper divisors (1).

138186712303 is an equidigital number, since it uses as much as digits as its factorization.

138186712303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 43.

The spelling of 138186712303 in words is "one hundred thirty-eight billion, one hundred eighty-six million, seven hundred twelve thousand, three hundred three".