1121001001013 has 2 divisors, whose sum is σ = 1121001001014. Its totient is φ = 1121001001012.

The previous prime is 1121001001007. The next prime is 1121001001037. The reversal of 1121001001013 is 3101001001211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1004970160324 + 116030840689 = 1002482^2 + 340633^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121001001013 - 2⁶ = 1121001000949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1121001000985 and 1121001001003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121001001093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560500500506 + 560500500507.

It is an arithmetic number, because the mean of its divisors is an integer number (560500500507).

Almost surely, 2^{1121001001013} is an apocalyptic number.

It is an amenable number.

1121001001013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121001001013 is an equidigital number, since it uses as much as digits as its factorization.

1121001001013 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 11.

Adding to 1121001001013 its reverse (3101001001211), we get a palindrome (4222002002224).

The spelling of 1121001001013 in words is "one trillion, one hundred twenty-one billion, one million, one thousand, thirteen".