11331131011031 has 16 divisors (see below), whose sum is σ = 12223591101120. Its totient is φ = 10441651368960.

The previous prime is 11331131011027. The next prime is 11331131011069. The reversal of 11331131011031 is 13011013113311.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11331131011031 - 2² = 11331131011027 is a prime.

It is a super-2 number, since 2×11331131011031² (a number of 27 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 = 11331131010994 and 11331131011012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11331131011631) 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, 70539401 + ... + 70699853.

It is an arithmetic number, because the mean of its divisors is an integer number (763974443820).

Almost surely, 2^{11331131011031} is an apocalyptic number.

11331131011031 is a deficient number, since it is larger than the sum of its proper divisors (892460090089).

11331131011031 is a wasteful number, since it uses less digits than its factorization.

11331131011031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169706.

The product of its (nonzero) digits is 81, while the sum is 20.

Adding to 11331131011031 its reverse (13011013113311), we get a palindrome (24342144124342).

The spelling of 11331131011031 in words is "eleven trillion, three hundred thirty-one billion, one hundred thirty-one million, eleven thousand, thirty-one".