1330401311 has 4 divisors (see below), whose sum is σ = 1330571400. Its totient is φ = 1330231224.

The previous prime is 1330401307. The next prime is 1330401349. The reversal of 1330401311 is 1131040331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1131040331 = 18353 ⋅61627.

It is a cyclic number.

It is not a de Polignac number, because 1330401311 - 2² = 1330401307 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1330401311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330401511) 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, 72716 + ... + 89153.

It is an arithmetic number, because the mean of its divisors is an integer number (332642850).

Almost surely, 2^1330401311 is an apocalyptic number.

1330401311 is a deficient number, since it is larger than the sum of its proper divisors (170089).

1330401311 is an equidigital number, since it uses as much as digits as its factorization.

1330401311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170088.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1330401311 is about 36474.6667016986. Note that the first 3 decimals coincide. The cubic root of 1330401311 is about 1099.8350471662.

Adding to 1330401311 its reverse (1131040331), we get a palindrome (2461441642).

The spelling of 1330401311 in words is "one billion, three hundred thirty million, four hundred one thousand, three hundred eleven".