1131185148013 has 2 divisors, whose sum is σ = 1131185148014. Its totient is φ = 1131185148012.

The previous prime is 1131185147903. The next prime is 1131185148017. The reversal of 1131185148013 is 3108415811311.

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., 1117982678409 + 13202469604 = 1057347^2 + 114902^2 .

It is a cyclic number.

It is not a de Polignac number, because 1131185148013 - 2³⁷ = 993746194541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1131185148017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565592574006 + 565592574007.

It is an arithmetic number, because the mean of its divisors is an integer number (565592574007).

Almost surely, 2^{1131185148013} is an apocalyptic number.

It is an amenable number.

1131185148013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131185148013 is an equidigital number, since it uses as much as digits as its factorization.

1131185148013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 37.

The spelling of 1131185148013 in words is "one trillion, one hundred thirty-one billion, one hundred eighty-five million, one hundred forty-eight thousand, thirteen".