1121123320013 has 16 divisors (see below), whose sum is σ = 1249961207040. Its totient is φ = 999309772800.

The previous prime is 1121123320003. The next prime is 1121123320019. The reversal of 1121123320013 is 3100233211211.

It is a happy number.

It is not a de Polignac number, because 1121123320013 - 2¹⁰ = 1121123318989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121123320019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 411548 + ... + 1552938.

It is an arithmetic number, because the mean of its divisors is an integer number (78122575440).

Almost surely, 2^{1121123320013} is an apocalyptic number.

It is an amenable number.

1121123320013 is a deficient number, since it is larger than the sum of its proper divisors (128837887027).

1121123320013 is a wasteful number, since it uses less digits than its factorization.

1121123320013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1144468.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1121123320013 its reverse (3100233211211), we get a palindrome (4221356531224).

The spelling of 1121123320013 in words is "one trillion, one hundred twenty-one billion, one hundred twenty-three million, three hundred twenty thousand, thirteen".