11133143775 has 72 divisors (see below), whose sum is σ = 21795497360. Its totient is φ = 5399032320.

The previous prime is 11133143771. The next prime is 11133143783. The reversal of 11133143775 is 57734133111.

It is not a de Polignac number, because 11133143775 - 2² = 11133143771 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11133143771) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 167571 + ... + 224379.

Almost surely, 2^11133143775 is an apocalyptic number.

11133143775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11133143775 is a deficient number, since it is larger than the sum of its proper divisors (10662353585).

11133143775 is a wasteful number, since it uses less digits than its factorization.

11133143775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56905 (or 56897 counting only the distinct ones).

The product of its digits is 26460, while the sum is 36.

Adding to 11133143775 its reverse (57734133111), we get a palindrome (68867276886).

The spelling of 11133143775 in words is "eleven billion, one hundred thirty-three million, one hundred forty-three thousand, seven hundred seventy-five".