10110009491 has 2 divisors, whose sum is σ = 10110009492. Its totient is φ = 10110009490.

The previous prime is 10110009449. The next prime is 10110009499. The reversal of 10110009491 is 19490001101.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10110009491 is a prime.

It is a super-2 number, since 2×10110009491² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10110009491.

It is not a weakly prime, because it can be changed into another prime (10110009499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5055004745 + 5055004746.

It is an arithmetic number, because the mean of its divisors is an integer number (5055004746).

Almost surely, 2^10110009491 is an apocalyptic number.

10110009491 is a deficient number, since it is larger than the sum of its proper divisors (1).

10110009491 is an equidigital number, since it uses as much as digits as its factorization.

10110009491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 26.

The spelling of 10110009491 in words is "ten billion, one hundred ten million, nine thousand, four hundred ninety-one".