11211542133 has 24 divisors (see below), whose sum is σ = 16445988384. Its totient is φ = 6788775840.

The previous prime is 11211542117. The next prime is 11211542141. The reversal of 11211542133 is 33124511211.

It is not a de Polignac number, because 11211542133 - 2⁴ = 11211542117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11211542233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 408891 + ... + 435447.

It is an arithmetic number, because the mean of its divisors is an integer number (685249516).

Almost surely, 2^11211542133 is an apocalyptic number.

It is an amenable number.

11211542133 is a deficient number, since it is larger than the sum of its proper divisors (5234446251).

11211542133 is a wasteful number, since it uses less digits than its factorization.

11211542133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27745 (or 27734 counting only the distinct ones).

The product of its digits is 720, while the sum is 24.

The spelling of 11211542133 in words is "eleven billion, two hundred eleven million, five hundred forty-two thousand, one hundred thirty-three".