11331231332031 has 24 divisors (see below), whose sum is σ = 17765150108160. Its totient is φ = 6918159398976.

The previous prime is 11331231331957. The next prime is 11331231332033. The reversal of 11331231332031 is 13023313213311.

11331231332031 is a `hidden beast` number, since 1 + 1 + 3 + 312 + 313 + 3 + 2 + 0 + 31 = 666.

It is not a de Polignac number, because 11331231332031 - 2¹⁵ = 11331231299263 is a prime.

It is a super-2 number, since 2×11331231332031² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11331231331986 and 11331231332004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11331231332033) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 381276996 + ... + 381306713.

It is an arithmetic number, because the mean of its divisors is an integer number (740214587840).

Almost surely, 2^{11331231332031} is an apocalyptic number.

11331231332031 is a deficient number, since it is larger than the sum of its proper divisors (6433918776129).

11331231332031 is a wasteful number, since it uses less digits than its factorization.

11331231332031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762583855 (or 762583852 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 27.

Adding to 11331231332031 its reverse (13023313213311), we get a palindrome (24354544545342).

The spelling of 11331231332031 in words is "eleven trillion, three hundred thirty-one billion, two hundred thirty-one million, three hundred thirty-two thousand, thirty-one".