1320440340411 has 64 divisors (see below), whose sum is σ = 2012997225600. Its totient is φ = 855086948352.

The previous prime is 1320440340353. The next prime is 1320440340467. The reversal of 1320440340411 is 1140430440231.

1320440340411 is a `hidden beast` number, since 1 + 3 + 204 + 4 + 0 + 3 + 40 + 411 = 666.

It is not a de Polignac number, because 1320440340411 - 2⁶ = 1320440340347 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1320440340481) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 163154281 + ... + 163162373.

It is an arithmetic number, because the mean of its divisors is an integer number (31453081650).

Almost surely, 2^{1320440340411} is an apocalyptic number.

1320440340411 is a deficient number, since it is larger than the sum of its proper divisors (692556885189).

1320440340411 is a wasteful number, since it uses less digits than its factorization.

1320440340411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9277 (or 9271 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 1320440340411 its reverse (1140430440231), we get a palindrome (2460870780642).

The spelling of 1320440340411 in words is "one trillion, three hundred twenty billion, four hundred forty million, three hundred forty thousand, four hundred eleven".