38923009132243 has 2 divisors, whose sum is σ = 38923009132244. Its totient is φ = 38923009132242.

The previous prime is 38923009132199. The next prime is 38923009132253. The reversal of 38923009132243 is 34223190032983.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38923009132243 is a prime.

It is a super-2 number, since 2×38923009132243² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (38923009132253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19461504566121 + 19461504566122.

It is an arithmetic number, because the mean of its divisors is an integer number (19461504566122).

Almost surely, 2^{38923009132243} is an apocalyptic number.

38923009132243 is a deficient number, since it is larger than the sum of its proper divisors (1).

38923009132243 is an equidigital number, since it uses as much as digits as its factorization.

38923009132243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1679616, while the sum is 49.

The spelling of 38923009132243 in words is "thirty-eight trillion, nine hundred twenty-three billion, nine million, one hundred thirty-two thousand, two hundred forty-three".