1315321101 has 12 divisors (see below), whose sum is σ = 1931055100. Its totient is φ = 862505280.

The previous prime is 1315321099. The next prime is 1315321141. The reversal of 1315321101 is 1011235131.

1315321101 is a `hidden beast` number, since 1 + 31 + 532 + 1 + 101 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 308845476 + 1006475625 = 17574^2 + 31725^2 .

It is not a de Polignac number, because 1315321101 - 2¹ = 1315321099 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 (1315321141) 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, 1197376 + ... + 1198473.

Almost surely, 2^1315321101 is an apocalyptic number.

It is an amenable number.

1315321101 is a deficient number, since it is larger than the sum of its proper divisors (615733999).

1315321101 is a wasteful number, since it uses less digits than its factorization.

1315321101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2395916 (or 2395913 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 1315321101 is about 36267.3558589539. The cubic root of 1315321101 is about 1095.6636722320.

Adding to 1315321101 its reverse (1011235131), we get a palindrome (2326556232).

The spelling of 1315321101 in words is "one billion, three hundred fifteen million, three hundred twenty-one thousand, one hundred one".