11143133657 has 2 divisors, whose sum is σ = 11143133658. Its totient is φ = 11143133656.

The previous prime is 11143133641. The next prime is 11143133693. The reversal of 11143133657 is 75633134111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9624394816 + 1518738841 = 98104^2 + 38971^2 .

It is a cyclic number.

It is not a de Polignac number, because 11143133657 - 2⁴ = 11143133641 is a prime.

It is not a weakly prime, because it can be changed into another prime (11143133557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5571566828 + 5571566829.

It is an arithmetic number, because the mean of its divisors is an integer number (5571566829).

Almost surely, 2^11143133657 is an apocalyptic number.

It is an amenable number.

11143133657 is a deficient number, since it is larger than the sum of its proper divisors (1).

11143133657 is an equidigital number, since it uses as much as digits as its factorization.

11143133657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 35.

Adding to 11143133657 its reverse (75633134111), we get a palindrome (86776267768).

The spelling of 11143133657 in words is "eleven billion, one hundred forty-three million, one hundred thirty-three thousand, six hundred fifty-seven".