1012110011111 has 2 divisors, whose sum is σ = 1012110011112. Its totient is φ = 1012110011110.

The previous prime is 1012110011083. The next prime is 1012110011149. The reversal of 1012110011111 is 1111100112101.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1012110011111 - 2¹⁸ = 1012109748967 is a prime.

It is a super-2 number, since 2×1012110011111² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1012110011092 and 1012110011101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012110011161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506055005555 + 506055005556.

It is an arithmetic number, because the mean of its divisors is an integer number (506055005556).

Almost surely, 2^{1012110011111} is an apocalyptic number.

1012110011111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012110011111 is an equidigital number, since it uses as much as digits as its factorization.

1012110011111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 1012110011111 its reverse (1111100112101), we get a palindrome (2123210123212).

The spelling of 1012110011111 in words is "one trillion, twelve billion, one hundred ten million, eleven thousand, one hundred eleven".