1121031313013 has 4 divisors (see below), whose sum is σ = 1131508241280. Its totient is φ = 1110554384748.

The previous prime is 1121031312997. The next prime is 1121031313063. The reversal of 1121031313013 is 3103131301211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1121031313013 - 2⁴ = 1121031312997 is a prime.

It is a super-2 number, since 2×1121031313013² (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 (1121031313063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5238463973 + ... + 5238464186.

It is an arithmetic number, because the mean of its divisors is an integer number (282877060320).

Almost surely, 2^{1121031313013} is an apocalyptic number.

It is an amenable number.

1121031313013 is a deficient number, since it is larger than the sum of its proper divisors (10476928267).

1121031313013 is a wasteful number, since it uses less digits than its factorization.

1121031313013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10476928266.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 1121031313013 its reverse (3103131301211), we get a palindrome (4224162614224).

The spelling of 1121031313013 in words is "one trillion, one hundred twenty-one billion, thirty-one million, three hundred thirteen thousand, thirteen".