1000100009291 has 2 divisors, whose sum is σ = 1000100009292. Its totient is φ = 1000100009290.

The previous prime is 1000100009281. The next prime is 1000100009299. The reversal of 1000100009291 is 1929000010001.

It is a strong prime.

It is an emirp because it is prime and its reverse (1929000010001) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1000100009291 is a prime.

It is not a weakly prime, because it can be changed into another prime (1000100009299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500050004645 + 500050004646.

It is an arithmetic number, because the mean of its divisors is an integer number (500050004646).

Almost surely, 2^{1000100009291} is an apocalyptic number.

1000100009291 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000100009291 is an equidigital number, since it uses as much as digits as its factorization.

1000100009291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 23.

Adding to 1000100009291 its reverse (1929000010001), we get a palindrome (2929100019292).

The spelling of 1000100009291 in words is "one trillion, one hundred million, nine thousand, two hundred ninety-one".