1111001401613 has 4 divisors (see below), whose sum is σ = 1111007335548. Its totient is φ = 1110995467680.

The previous prime is 1111001401603. The next prime is 1111001401637. The reversal of 1111001401613 is 3161041001111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 468187114564 + 642814287049 = 684242^2 + 801757^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111001401613 - 2²⁰ = 1111000353037 is a prime.

It is a super-2 number, since 2×1111001401613² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111001401603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2676656 + ... + 3063737.

It is an arithmetic number, because the mean of its divisors is an integer number (277751833887).

Almost surely, 2^{1111001401613} is an apocalyptic number.

It is an amenable number.

1111001401613 is a deficient number, since it is larger than the sum of its proper divisors (5933935).

1111001401613 is an equidigital number, since it uses as much as digits as its factorization.

1111001401613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5933934.

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 1111001401613 its reverse (3161041001111), we get a palindrome (4272042402724).

The spelling of 1111001401613 in words is "one trillion, one hundred eleven billion, one million, four hundred one thousand, six hundred thirteen".