101001000091811 has 2 divisors, whose sum is σ = 101001000091812. Its totient is φ = 101001000091810.

The previous prime is 101001000091763. The next prime is 101001000091841. The reversal of 101001000091811 is 118190000100101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 101001000091811 - 2⁴⁶ = 30632255914147 is a prime.

It is not a weakly prime, because it can be changed into another prime (101001000091841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50500500045905 + 50500500045906.

It is an arithmetic number, because the mean of its divisors is an integer number (50500500045906).

Almost surely, 2^{101001000091811} is an apocalyptic number.

101001000091811 is a deficient number, since it is larger than the sum of its proper divisors (1).

101001000091811 is an equidigital number, since it uses as much as digits as its factorization.

101001000091811 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 23.

Adding to 101001000091811 its reverse (118190000100101), we get a palindrome (219191000191912).

The spelling of 101001000091811 in words is "one hundred one trillion, one billion, ninety-one thousand, eight hundred eleven".