1313001001 has 32 divisors (see below), whose sum is σ = 1581769728. Its totient is φ = 1077995520.

The previous prime is 1313000999. The next prime is 1313001043. The reversal of 1313001001 is 1001003131.

It is a cyclic number.

It is not a de Polignac number, because 1313001001 - 2¹ = 1313000999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1313001101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 292365 + ... + 296821.

It is an arithmetic number, because the mean of its divisors is an integer number (49430304).

Almost surely, 2^1313001001 is an apocalyptic number.

It is an amenable number.

1313001001 is a deficient number, since it is larger than the sum of its proper divisors (268768727).

1313001001 is a wasteful number, since it uses less digits than its factorization.

1313001001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4561.

The product of its (nonzero) digits is 9, while the sum is 10.

The square root of 1313001001 is about 36235.3556764660. The cubic root of 1313001001 is about 1095.0190779465.

Adding to 1313001001 its reverse (1001003131), we get a palindrome (2314004132).

The spelling of 1313001001 in words is "one billion, three hundred thirteen million, one thousand, one".