13031242 has 16 divisors (see below), whose sum is σ = 22492800. Its totient is φ = 5546448.

The previous prime is 13031233. The next prime is 13031243. The reversal of 13031242 is 24213031.

It is a happy number.

It is a super-3 number, since 3×13031242³ (a number of 22 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (13031243) 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 7 ways as a sum of consecutive naturals, for example, 1038 + ... + 5209.

It is an arithmetic number, because the mean of its divisors is an integer number (1405800).

Almost surely, 2^13031242 is an apocalyptic number.

13031242 is a deficient number, since it is larger than the sum of its proper divisors (9461558).

13031242 is a wasteful number, since it uses less digits than its factorization.

13031242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6405.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 13031242 is about 3609.8811614789. The cubic root of 13031242 is about 235.3216780780.

Adding to 13031242 its reverse (24213031), we get a palindrome (37244273).

The spelling of 13031242 in words is "thirteen million, thirty-one thousand, two hundred forty-two".