43243353371 has 2 divisors, whose sum is σ = 43243353372. Its totient is φ = 43243353370.

The previous prime is 43243353347. The next prime is 43243353379. The reversal of 43243353371 is 17335334234.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43243353371 is a prime.

It is a super-2 number, since 2×43243353371² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (43243353379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21621676685 + 21621676686.

It is an arithmetic number, because the mean of its divisors is an integer number (21621676686).

Almost surely, 2^43243353371 is an apocalyptic number.

43243353371 is a deficient number, since it is larger than the sum of its proper divisors (1).

43243353371 is an equidigital number, since it uses as much as digits as its factorization.

43243353371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 38.

The spelling of 43243353371 in words is "forty-three billion, two hundred forty-three million, three hundred fifty-three thousand, three hundred seventy-one".