201311031013 has 8 divisors (see below), whose sum is σ = 201753205632. Its totient is φ = 200869128096.

The previous prime is 201311030993. The next prime is 201311031059. The reversal of 201311031013 is 310130113102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201311031013 is a prime.

It is a super-2 number, since 2×201311031013² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201311041013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1452756 + ... + 1585282.

It is an arithmetic number, because the mean of its divisors is an integer number (25219150704).

Almost surely, 2^201311031013 is an apocalyptic number.

It is an amenable number.

201311031013 is a deficient number, since it is larger than the sum of its proper divisors (442174619).

201311031013 is a wasteful number, since it uses less digits than its factorization.

201311031013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135851.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 201311031013 its reverse (310130113102), we get a palindrome (511441144115).

The spelling of 201311031013 in words is "two hundred one billion, three hundred eleven million, thirty-one thousand, thirteen".