1000111023091 has 2 divisors, whose sum is σ = 1000111023092. Its totient is φ = 1000111023090.

The previous prime is 1000111023061. The next prime is 1000111023101. The reversal of 1000111023091 is 1903201110001.

It is a strong prime.

It is an emirp because it is prime and its reverse (1903201110001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1000111023091 - 2¹⁷ = 1000110892019 is a prime.

It is not a weakly prime, because it can be changed into another prime (1000111023061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500055511545 + 500055511546.

It is an arithmetic number, because the mean of its divisors is an integer number (500055511546).

Almost surely, 2^{1000111023091} is an apocalyptic number.

1000111023091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000111023091 is an equidigital number, since it uses as much as digits as its factorization.

1000111023091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 19.

Adding to 1000111023091 its reverse (1903201110001), we get a palindrome (2903312133092).

The spelling of 1000111023091 in words is "one trillion, one hundred eleven million, twenty-three thousand, ninety-one".