13851050243 has 2 divisors, whose sum is σ = 13851050244. Its totient is φ = 13851050242.

The previous prime is 13851050207. The next prime is 13851050249. The reversal of 13851050243 is 34205015831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13851050243 - 2⁸ = 13851049987 is a prime.

It is a super-2 number, since 2×13851050243² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13851050249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6925525121 + 6925525122.

It is an arithmetic number, because the mean of its divisors is an integer number (6925525122).

Almost surely, 2^13851050243 is an apocalyptic number.

13851050243 is a deficient number, since it is larger than the sum of its proper divisors (1).

13851050243 is an equidigital number, since it uses as much as digits as its factorization.

13851050243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 32.

The spelling of 13851050243 in words is "thirteen billion, eight hundred fifty-one million, fifty thousand, two hundred forty-three".