1131126323557 has 2 divisors, whose sum is σ = 1131126323558. Its totient is φ = 1131126323556.

The previous prime is 1131126323539. The next prime is 1131126323563. The reversal of 1131126323557 is 7553236211311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1104907913316 + 26218410241 = 1051146^2 + 161921^2 .

It is a cyclic number.

It is not a de Polignac number, because 1131126323557 - 2¹⁹ = 1131125799269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1131126323527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565563161778 + 565563161779.

It is an arithmetic number, because the mean of its divisors is an integer number (565563161779).

Almost surely, 2^{1131126323557} is an apocalyptic number.

It is an amenable number.

1131126323557 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131126323557 is an equidigital number, since it uses as much as digits as its factorization.

1131126323557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 113400, while the sum is 40.

The spelling of 1131126323557 in words is "one trillion, one hundred thirty-one billion, one hundred twenty-six million, three hundred twenty-three thousand, five hundred fifty-seven".