1316353081 has 4 divisors (see below), whose sum is σ = 1329133312. Its totient is φ = 1303572852.

The previous prime is 1316353069. The next prime is 1316353097. The reversal of 1316353081 is 1803536131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1803536131 = 59 ⋅30568409.

It is a cyclic number.

It is not a de Polignac number, because 1316353081 - 2²³ = 1307964473 is a prime.

It is a super-3 number, since 3×1316353081³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1316353681) 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, 6389961 + ... + 6390166.

It is an arithmetic number, because the mean of its divisors is an integer number (332283328).

Almost surely, 2^1316353081 is an apocalyptic number.

It is an amenable number.

1316353081 is a deficient number, since it is larger than the sum of its proper divisors (12780231).

1316353081 is a wasteful number, since it uses less digits than its factorization.

1316353081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12780230.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 1316353081 is about 36281.5804644726. The cubic root of 1316353081 is about 1095.9501440838.

The spelling of 1316353081 in words is "one billion, three hundred sixteen million, three hundred fifty-three thousand, eighty-one".