1121000112013 has 2 divisors, whose sum is σ = 1121000112014. Its totient is φ = 1121000112012.

The previous prime is 1121000111989. The next prime is 1121000112017. The reversal of 1121000112013 is 3102110001211.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 908462515689 + 212537596324 = 953133^2 + 461018^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121000112013 - 2⁹ = 1121000111501 is a prime.

It is a super-2 number, since 2×1121000112013² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1121000111984 and 1121000112002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121000112017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560500056006 + 560500056007.

It is an arithmetic number, because the mean of its divisors is an integer number (560500056007).

Almost surely, 2^{1121000112013} is an apocalyptic number.

It is an amenable number.

1121000112013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121000112013 is an equidigital number, since it uses as much as digits as its factorization.

1121000112013 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 13.

Adding to 1121000112013 its reverse (3102110001211), we get a palindrome (4223110113224).

The spelling of 1121000112013 in words is "one trillion, one hundred twenty-one billion, one hundred twelve thousand, thirteen".