11331112111031 has 2 divisors, whose sum is σ = 11331112111032. Its totient is φ = 11331112111030.

The previous prime is 11331112111019. The next prime is 11331112111043. The reversal of 11331112111031 is 13011121113311.

It is a balanced prime because it is at equal distance from previous prime (11331112111019) and next prime (11331112111043).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11331112111031 is a prime.

It is a super-2 number, since 2×11331112111031² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11331112110994 and 11331112111012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11331112111091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5665556055515 + 5665556055516.

It is an arithmetic number, because the mean of its divisors is an integer number (5665556055516).

Almost surely, 2^{11331112111031} is an apocalyptic number.

11331112111031 is a deficient number, since it is larger than the sum of its proper divisors (1).

11331112111031 is an equidigital number, since it uses as much as digits as its factorization.

11331112111031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 20.

Adding to 11331112111031 its reverse (13011121113311), we get a palindrome (24342233224342).

The spelling of 11331112111031 in words is "eleven trillion, three hundred thirty-one billion, one hundred twelve million, one hundred eleven thousand, thirty-one".