1200113101111 has 2 divisors, whose sum is σ = 1200113101112. Its totient is φ = 1200113101110.

The previous prime is 1200113101093. The next prime is 1200113101157. The reversal of 1200113101111 is 1111013110021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1200113101111 - 2¹¹ = 1200113099063 is a prime.

It is a super-2 number, since 2×1200113101111² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1200113101091 and 1200113101100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1200113101211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600056550555 + 600056550556.

It is an arithmetic number, because the mean of its divisors is an integer number (600056550556).

Almost surely, 2^{1200113101111} is an apocalyptic number.

1200113101111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200113101111 is an equidigital number, since it uses as much as digits as its factorization.

1200113101111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6, while the sum is 13.

Adding to 1200113101111 its reverse (1111013110021), we get a palindrome (2311126211132).

The spelling of 1200113101111 in words is "one trillion, two hundred billion, one hundred thirteen million, one hundred one thousand, one hundred eleven".