1316660201 has 4 divisors (see below), whose sum is σ = 1317938304. Its totient is φ = 1315382100.

The previous prime is 1316660197. The next prime is 1316660221. The reversal of 1316660201 is 1020666131.

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: 1020666131 = 2029 ⋅503039.

It is a cyclic number.

It is not a de Polignac number, because 1316660201 - 2² = 1316660197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1316660221) 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, 637505 + ... + 639566.

It is an arithmetic number, because the mean of its divisors is an integer number (329484576).

Almost surely, 2^1316660201 is an apocalyptic number.

It is an amenable number.

1316660201 is a deficient number, since it is larger than the sum of its proper divisors (1278103).

1316660201 is a wasteful number, since it uses less digits than its factorization.

1316660201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1278102.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 1316660201 is about 36285.8126683143. The cubic root of 1316660201 is about 1096.0353699603.

The spelling of 1316660201 in words is "one billion, three hundred sixteen million, six hundred sixty thousand, two hundred one".