20131313001 has 4 divisors (see below), whose sum is σ = 26841750672. Its totient is φ = 13420875332.

The previous prime is 20131312997. The next prime is 20131313047. The reversal of 20131313001 is 10031313102.

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.

It is a cyclic number.

It is not a de Polignac number, because 20131313001 - 2² = 20131312997 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20131313101) 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, 3355218831 + ... + 3355218836.

It is an arithmetic number, because the mean of its divisors is an integer number (6710437668).

Almost surely, 2^20131313001 is an apocalyptic number.

It is an amenable number.

20131313001 is a deficient number, since it is larger than the sum of its proper divisors (6710437671).

20131313001 is an equidigital number, since it uses as much as digits as its factorization.

20131313001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6710437670.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 20131313001 its reverse (10031313102), we get a palindrome (30162626103).

The spelling of 20131313001 in words is "twenty billion, one hundred thirty-one million, three hundred thirteen thousand, one".