10011000009971 has 2 divisors, whose sum is σ = 10011000009972. Its totient is φ = 10011000009970.

The previous prime is 10011000009943. The next prime is 10011000010009. The reversal of 10011000009971 is 17990000011001.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10011000009971 is a prime.

It is not a weakly prime, because it can be changed into another prime (10011000009671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5005500004985 + 5005500004986.

It is an arithmetic number, because the mean of its divisors is an integer number (5005500004986).

Almost surely, 2^{10011000009971} is an apocalyptic number.

10011000009971 is a deficient number, since it is larger than the sum of its proper divisors (1).

10011000009971 is an equidigital number, since it uses as much as digits as its factorization.

10011000009971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 567, while the sum is 29.

The spelling of 10011000009971 in words is "ten trillion, eleven billion, nine thousand, nine hundred seventy-one".