101210120011111 has 2 divisors, whose sum is σ = 101210120011112. Its totient is φ = 101210120011110.

The previous prime is 101210120011061. The next prime is 101210120011123. The reversal of 101210120011111 is 111110021012101.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101210120011111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101210120011091 and 101210120011100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101210120011151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50605060005555 + 50605060005556.

It is an arithmetic number, because the mean of its divisors is an integer number (50605060005556).

Almost surely, 2^{101210120011111} is an apocalyptic number.

101210120011111 is a deficient number, since it is larger than the sum of its proper divisors (1).

101210120011111 is an equidigital number, since it uses as much as digits as its factorization.

101210120011111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 101210120011111 its reverse (111110021012101), we get a palindrome (212320141023212).

The spelling of 101210120011111 in words is "one hundred one trillion, two hundred ten billion, one hundred twenty million, eleven thousand, one hundred eleven".