11131324031 has 16 divisors (see below), whose sum is σ = 11391559200. Its totient is φ = 10873724928.

The previous prime is 11131324027. The next prime is 11131324037. The reversal of 11131324031 is 13042313111.

It is a cyclic number.

It is not a de Polignac number, because 11131324031 - 2² = 11131324027 is a prime.

It is a super-2 number, since 2×11131324031² (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 = 11131323994 and 11131324012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11131324037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7899455 + ... + 7900863.

It is an arithmetic number, because the mean of its divisors is an integer number (711972450).

Almost surely, 2^11131324031 is an apocalyptic number.

11131324031 is a deficient number, since it is larger than the sum of its proper divisors (260235169).

11131324031 is a wasteful number, since it uses less digits than its factorization.

11131324031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2218.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 11131324031 its reverse (13042313111), we get a palindrome (24173637142).

The spelling of 11131324031 in words is "eleven billion, one hundred thirty-one million, three hundred twenty-four thousand, thirty-one".