101122031111 has 2 divisors, whose sum is σ = 101122031112. Its totient is φ = 101122031110.

The previous prime is 101122031083. The next prime is 101122031147. The reversal of 101122031111 is 111130221101.

It is a weak prime.

It is an emirp because it is prime and its reverse (111130221101) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101122031111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101122031161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50561015555 + 50561015556.

It is an arithmetic number, because the mean of its divisors is an integer number (50561015556).

Almost surely, 2^101122031111 is an apocalyptic number.

101122031111 is a deficient number, since it is larger than the sum of its proper divisors (1).

101122031111 is an equidigital number, since it uses as much as digits as its factorization.

101122031111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 101122031111 its reverse (111130221101), we get a palindrome (212252252212).

The spelling of 101122031111 in words is "one hundred one billion, one hundred twenty-two million, thirty-one thousand, one hundred eleven".