13311012031 has 4 divisors (see below), whose sum is σ = 13368141072. Its totient is φ = 13253882992.

The previous prime is 13311011993. The next prime is 13311012061. The reversal of 13311012031 is 13021011331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13311012031 - 2¹¹ = 13311009983 is a prime.

It is a super-2 number, since 2×13311012031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13311011996 and 13311012014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13311012061) 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, 28564171 + ... + 28564636.

It is an arithmetic number, because the mean of its divisors is an integer number (3342035268).

Almost surely, 2^13311012031 is an apocalyptic number.

13311012031 is a deficient number, since it is larger than the sum of its proper divisors (57129041).

13311012031 is an equidigital number, since it uses as much as digits as its factorization.

13311012031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57129040.

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

Adding to 13311012031 its reverse (13021011331), we get a palindrome (26332023362).

The spelling of 13311012031 in words is "thirteen billion, three hundred eleven million, twelve thousand, thirty-one".