11031133131 has 6 divisors (see below), whose sum is σ = 15933858980. Its totient is φ = 7354088748.

The previous prime is 11031133103. The next prime is 11031133133. The reversal of 11031133131 is 13133113011.

11031133131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11031133131 - 2¹⁹ = 11030608843 is a prime.

It is a super-2 number, since 2×11031133131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11031133133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 612840721 + ... + 612840738.

Almost surely, 2^11031133131 is an apocalyptic number.

11031133131 is a deficient number, since it is larger than the sum of its proper divisors (4902725849).

11031133131 is a wasteful number, since it uses less digits than its factorization.

11031133131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225681465 (or 1225681462 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 18.

Adding to 11031133131 its reverse (13133113011), we get a palindrome (24164246142).

The spelling of 11031133131 in words is "eleven billion, thirty-one million, one hundred thirty-three thousand, one hundred thirty-one".