1320049411 has 4 divisors (see below), whose sum is σ = 1325308824. Its totient is φ = 1314790000.

The previous prime is 1320049397. The next prime is 1320049433. The reversal of 1320049411 is 1149400231.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1320049411 - 2²³ = 1311660803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1320040411) 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, 2629330 + ... + 2629831.

It is an arithmetic number, because the mean of its divisors is an integer number (331327206).

Almost surely, 2^1320049411 is an apocalyptic number.

1320049411 is a deficient number, since it is larger than the sum of its proper divisors (5259413).

1320049411 is an equidigital number, since it uses as much as digits as its factorization.

1320049411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5259412.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1320049411 is about 36332.4842393140. The cubic root of 1320049411 is about 1096.9749976782.

Adding to 1320049411 its reverse (1149400231), we get a palindrome (2469449642).

The spelling of 1320049411 in words is "one billion, three hundred twenty million, forty-nine thousand, four hundred eleven".