10011000009943 has 2 divisors, whose sum is σ = 10011000009944. Its totient is φ = 10011000009942.

The previous prime is 10011000009851. The next prime is 10011000009971. The reversal of 10011000009943 is 34990000011001.

It is a happy number.

It is an a-pointer prime, because the next prime (10011000009971) can be obtained adding 10011000009943 to its sum of digits (28).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10011000009943 - 2⁹ = 10011000009431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10011000099943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5005500004971 + 5005500004972.

It is an arithmetic number, because the mean of its divisors is an integer number (5005500004972).

Almost surely, 2^{10011000009943} is an apocalyptic number.

10011000009943 is a deficient number, since it is larger than the sum of its proper divisors (1).

10011000009943 is an equidigital number, since it uses as much as digits as its factorization.

10011000009943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 28.

The spelling of 10011000009943 in words is "ten trillion, eleven billion, nine thousand, nine hundred forty-three".