101121111911 has 2 divisors, whose sum is σ = 101121111912. Its totient is φ = 101121111910.

The previous prime is 101121111887. The next prime is 101121111913. The reversal of 101121111911 is 119111121101.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101121111911 is a prime.

Together with 101121111913, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101121111913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50560555955 + 50560555956.

It is an arithmetic number, because the mean of its divisors is an integer number (50560555956).

Almost surely, 2^101121111911 is an apocalyptic number.

101121111911 is a deficient number, since it is larger than the sum of its proper divisors (1).

101121111911 is an equidigital number, since it uses as much as digits as its factorization.

101121111911 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 20.

The spelling of 101121111911 in words is "one hundred one billion, one hundred twenty-one million, one hundred eleven thousand, nine hundred eleven".