1131311102237 has 2 divisors, whose sum is σ = 1131311102238. Its totient is φ = 1131311102236.

The previous prime is 1131311102197. The next prime is 1131311102261. The reversal of 1131311102237 is 7322011131311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1027914127321 + 103396974916 = 1013861^2 + 321554^2 .

It is a cyclic number.

It is not a de Polignac number, because 1131311102237 - 2²⁰ = 1131310053661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1131311182237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565655551118 + 565655551119.

It is an arithmetic number, because the mean of its divisors is an integer number (565655551119).

Almost surely, 2^{1131311102237} is an apocalyptic number.

It is an amenable number.

1131311102237 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131311102237 is an equidigital number, since it uses as much as digits as its factorization.

1131311102237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 26.

Adding to 1131311102237 its reverse (7322011131311), we get a palindrome (8453322233548).

The spelling of 1131311102237 in words is "one trillion, one hundred thirty-one billion, three hundred eleven million, one hundred two thousand, two hundred thirty-seven".