1121320411313 has 4 divisors (see below), whose sum is σ = 1121344753188. Its totient is φ = 1121296069440.

The previous prime is 1121320411297. The next prime is 1121320411357. The reversal of 1121320411313 is 3131140231211.

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 661517075569 + 459803335744 = 813337^2 + 678088^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121320411313 - 2⁴ = 1121320411297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121320411373) 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, 12101708 + ... + 12194013.

It is an arithmetic number, because the mean of its divisors is an integer number (280336188297).

Almost surely, 2^{1121320411313} is an apocalyptic number.

It is an amenable number.

1121320411313 is a deficient number, since it is larger than the sum of its proper divisors (24341875).

1121320411313 is an equidigital number, since it uses as much as digits as its factorization.

1121320411313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24341874.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 1121320411313 its reverse (3131140231211), we get a palindrome (4252460642524).

The spelling of 1121320411313 in words is "one trillion, one hundred twenty-one billion, three hundred twenty million, four hundred eleven thousand, three hundred thirteen".