13011031331 has 8 divisors (see below), whose sum is σ = 13103764128. Its totient is φ = 12918528000.

The previous prime is 13011031309. The next prime is 13011031357. The reversal of 13011031331 is 13313011031.

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

It is a cyclic number.

It is not a de Polignac number, because 13011031331 - 2²² = 13006837027 is a prime.

It is a super-2 number, since 2×13011031331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13011031381) 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, 57251 + ... + 171171.

It is an arithmetic number, because the mean of its divisors is an integer number (1637970516).

Almost surely, 2^13011031331 is an apocalyptic number.

13011031331 is a deficient number, since it is larger than the sum of its proper divisors (92732797).

13011031331 is a wasteful number, since it uses less digits than its factorization.

13011031331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114733.

The product of its (nonzero) digits is 81, while the sum is 17.

Adding to 13011031331 its reverse (13313011031), we get a palindrome (26324042362).

The spelling of 13011031331 in words is "thirteen billion, eleven million, thirty-one thousand, three hundred thirty-one".