1320311013121 has 8 divisors (see below), whose sum is σ = 1398333884544. Its totient is φ = 1242327865920.

The previous prime is 1320311013113. The next prime is 1320311013163. The reversal of 1320311013121 is 1213101130231.

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

It is not a de Polignac number, because 1320311013121 - 2³ = 1320311013113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1320311017121) 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, 9862605 + ... + 9995578.

It is an arithmetic number, because the mean of its divisors is an integer number (174791735568).

Almost surely, 2^{1320311013121} is an apocalyptic number.

It is an amenable number.

1320311013121 is a deficient number, since it is larger than the sum of its proper divisors (78022871423).

1320311013121 is a wasteful number, since it uses less digits than its factorization.

1320311013121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19862111.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 1320311013121 its reverse (1213101130231), we get a palindrome (2533412143352).

The spelling of 1320311013121 in words is "one trillion, three hundred twenty billion, three hundred eleven million, thirteen thousand, one hundred twenty-one".