43023768450139 has 2 divisors, whose sum is σ = 43023768450140. Its totient is φ = 43023768450138.

The previous prime is 43023768450137. The next prime is 43023768450193. The reversal of 43023768450139 is 93105486732034.

It is a happy number.

Together with next prime (43023768450193) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43023768450139 - 2¹ = 43023768450137 is a prime.

Together with 43023768450137, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 43023768450139.

It is not a weakly prime, because it can be changed into another prime (43023768450137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21511884225069 + 21511884225070.

It is an arithmetic number, because the mean of its divisors is an integer number (21511884225070).

It is a 1-persistent number, because it is pandigital, but 2⋅43023768450139 = 86047536900278 is not.

Almost surely, 2^{43023768450139} is an apocalyptic number.

43023768450139 is a deficient number, since it is larger than the sum of its proper divisors (1).

43023768450139 is an equidigital number, since it uses as much as digits as its factorization.

43023768450139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13063680, while the sum is 55.

The spelling of 43023768450139 in words is "forty-three trillion, twenty-three billion, seven hundred sixty-eight million, four hundred fifty thousand, one hundred thirty-nine".