11131125214549 has 2 divisors, whose sum is σ = 11131125214550. Its totient is φ = 11131125214548.

The previous prime is 11131125214543. The next prime is 11131125214553. The reversal of 11131125214549 is 94541252113111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10819376075524 + 311749139025 = 3289282^2 + 558345^2 .

It is a cyclic number.

It is not a de Polignac number, because 11131125214549 - 2³ = 11131125214541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11131125214541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5565562607274 + 5565562607275.

It is an arithmetic number, because the mean of its divisors is an integer number (5565562607275).

Almost surely, 2^{11131125214549} is an apocalyptic number.

It is an amenable number.

11131125214549 is a deficient number, since it is larger than the sum of its proper divisors (1).

11131125214549 is an equidigital number, since it uses as much as digits as its factorization.

11131125214549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43200, while the sum is 40.

The spelling of 11131125214549 in words is "eleven trillion, one hundred thirty-one billion, one hundred twenty-five million, two hundred fourteen thousand, five hundred forty-nine".