1311408351 has 12 divisors (see below), whose sum is σ = 2066461800. Its totient is φ = 794792880.

The previous prime is 1311408349. The next prime is 1311408359. The reversal of 1311408351 is 1538041131.

It is not a de Polignac number, because 1311408351 - 2¹ = 1311408349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311408359) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6623176 + ... + 6623373.

It is an arithmetic number, because the mean of its divisors is an integer number (172205150).

Almost surely, 2^1311408351 is an apocalyptic number.

1311408351 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1311408351 is a deficient number, since it is larger than the sum of its proper divisors (755053449).

1311408351 is a wasteful number, since it uses less digits than its factorization.

1311408351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13246566 (or 13246563 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 1311408351 is about 36213.3725438546. The cubic root of 1311408351 is about 1094.5761517162.

Adding to 1311408351 its reverse (1538041131), we get a palindrome (2849449482).

The spelling of 1311408351 in words is "one billion, three hundred eleven million, four hundred eight thousand, three hundred fifty-one".