111131031000037 has 2 divisors, whose sum is σ = 111131031000038. Its totient is φ = 111131031000036.

The previous prime is 111131030999993. The next prime is 111131031000079. The reversal of 111131031000037 is 730000130131111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108111728587041 + 3019302412996 = 10397679^2 + 1737614^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111131031000037 is a prime.

It is a super-2 number, since 2×111131031000037² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111131030999981 and 111131031000017.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111131037000037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55565515500018 + 55565515500019.

It is an arithmetic number, because the mean of its divisors is an integer number (55565515500019).

Almost surely, 2^{111131031000037} is an apocalyptic number.

It is an amenable number.

111131031000037 is a deficient number, since it is larger than the sum of its proper divisors (1).

111131031000037 is an equidigital number, since it uses as much as digits as its factorization.

111131031000037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 189, while the sum is 22.

Adding to 111131031000037 its reverse (730000130131111), we get a palindrome (841131161131148).

The spelling of 111131031000037 in words is "one hundred eleven trillion, one hundred thirty-one billion, thirty-one million, thirty-seven", and thus it is an aban number.