101243565443 has 2 divisors, whose sum is σ = 101243565444. Its totient is φ = 101243565442.

The previous prime is 101243565413. The next prime is 101243565487. The reversal of 101243565443 is 344565342101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101243565443 - 2³² = 96948598147 is a prime.

It is a super-2 number, since 2×101243565443² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101243565397 and 101243565406.

It is not a weakly prime, because it can be changed into another prime (101243565413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50621782721 + 50621782722.

It is an arithmetic number, because the mean of its divisors is an integer number (50621782722).

Almost surely, 2^101243565443 is an apocalyptic number.

101243565443 is a deficient number, since it is larger than the sum of its proper divisors (1).

101243565443 is an equidigital number, since it uses as much as digits as its factorization.

101243565443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 172800, while the sum is 38.

The spelling of 101243565443 in words is "one hundred one billion, two hundred forty-three million, five hundred sixty-five thousand, four hundred forty-three".