1311401411 has 4 divisors (see below), whose sum is σ = 1327201512. Its totient is φ = 1295601312.

The previous prime is 1311401407. The next prime is 1311401423. The reversal of 1311401411 is 1141041131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1141041131 = 139 ⋅8208929.

It is a cyclic number.

It is not a de Polignac number, because 1311401411 - 2² = 1311401407 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 1311401411.

It is not an unprimeable number, because it can be changed into a prime (1311401461) 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, 7899926 + ... + 7900091.

It is an arithmetic number, because the mean of its divisors is an integer number (331800378).

Almost surely, 2^1311401411 is an apocalyptic number.

1311401411 is a deficient number, since it is larger than the sum of its proper divisors (15800101).

1311401411 is an equidigital number, since it uses as much as digits as its factorization.

1311401411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15800100.

The product of its (nonzero) digits is 48, while the sum is 17.

The square root of 1311401411 is about 36213.2767227712. The cubic root of 1311401411 is about 1094.5742208729.

Adding to 1311401411 its reverse (1141041131), we get a palindrome (2452442542).

The spelling of 1311401411 in words is "one billion, three hundred eleven million, four hundred one thousand, four hundred eleven".