9143993423 has 2 divisors, whose sum is σ = 9143993424. Its totient is φ = 9143993422.

The previous prime is 9143993377. The next prime is 9143993449. The reversal of 9143993423 is 3243993419.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9143993423 - 2¹⁸ = 9143731279 is a prime.

It is a super-2 number, since 2×9143993423² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9143993123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4571996711 + 4571996712.

It is an arithmetic number, because the mean of its divisors is an integer number (4571996712).

Almost surely, 2^9143993423 is an apocalyptic number.

9143993423 is a deficient number, since it is larger than the sum of its proper divisors (1).

9143993423 is an equidigital number, since it uses as much as digits as its factorization.

9143993423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 629856, while the sum is 47.

The square root of 9143993423 is about 95624.2303132423. The cubic root of 9143993423 is about 2091.1184556358.

The spelling of 9143993423 in words is "nine billion, one hundred forty-three million, nine hundred ninety-three thousand, four hundred twenty-three".