1121122012013 has 8 divisors (see below), whose sum is σ = 1139852216568. Its totient is φ = 1102482952704.

The previous prime is 1121122012009. The next prime is 1121122012051. The reversal of 1121122012013 is 3102102211211.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 409321007524 + 711801004489 = 639782^2 + 843683^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1121122012013 - 2² = 1121122012009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1121122011982 and 1121122012000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121122012063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22761506 + ... + 22810707.

It is an arithmetic number, because the mean of its divisors is an integer number (142481527071).

Almost surely, 2^{1121122012013} is an apocalyptic number.

It is an amenable number.

1121122012013 is a deficient number, since it is larger than the sum of its proper divisors (18730204555).

1121122012013 is an equidigital number, since it uses as much as digits as its factorization.

1121122012013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45572623.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1121122012013 its reverse (3102102211211), we get a palindrome (4223224223224).

The spelling of 1121122012013 in words is "one trillion, one hundred twenty-one billion, one hundred twenty-two million, twelve thousand, thirteen".