13031011 has 12 divisors (see below), whose sum is σ = 15370392. Its totient is φ = 11013408.

The previous prime is 13031009. The next prime is 13031033. The reversal of 13031011 is 11013031.

It is not a de Polignac number, because 13031011 - 2¹ = 13031009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13034011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1756 + ... + 5398.

It is an arithmetic number, because the mean of its divisors is an integer number (1280866).

Almost surely, 2^13031011 is an apocalyptic number.

13031011 is a deficient number, since it is larger than the sum of its proper divisors (2339381).

13031011 is an equidigital number, since it uses as much as digits as its factorization.

13031011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3730 (or 3723 counting only the distinct ones).

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

The square root of 13031011 is about 3609.8491658240. The cubic root of 13031011 is about 235.3202875831.

Adding to 13031011 its reverse (11013031), we get a palindrome (24044042).

It can be divided in two parts, 130310 and 11, that added together give a 4-th power (130321 = 19⁴).

The spelling of 13031011 in words is "thirteen million, thirty-one thousand, eleven".