1315404311 has 4 divisors (see below), whose sum is σ = 1416589272. Its totient is φ = 1214219352.

The previous prime is 1315404283. The next prime is 1315404313. The reversal of 1315404311 is 1134045131.

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 1315404311 - 2¹⁸ = 1315142167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315404313) 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, 50592461 + ... + 50592486.

It is an arithmetic number, because the mean of its divisors is an integer number (354147318).

Almost surely, 2^1315404311 is an apocalyptic number.

1315404311 is a deficient number, since it is larger than the sum of its proper divisors (101184961).

1315404311 is a wasteful number, since it uses less digits than its factorization.

1315404311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101184960.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1315404311 is about 36268.5030157022. The cubic root of 1315404311 is about 1095.6867764133.

Adding to 1315404311 its reverse (1134045131), we get a palindrome (2449449442).

The spelling of 1315404311 in words is "one billion, three hundred fifteen million, four hundred four thousand, three hundred eleven".