133120311111 has 40 divisors (see below), whose sum is σ = 201841550064. Its totient is φ = 87425619840.

The previous prime is 133120311029. The next prime is 133120311179. The reversal of 133120311111 is 111113021331.

133120311111 is a `hidden beast` number, since 1 + 331 + 20 + 311 + 1 + 1 + 1 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-133120311111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133120316111) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1407921 + ... + 1499493.

Almost surely, 2^133120311111 is an apocalyptic number.

133120311111 is a deficient number, since it is larger than the sum of its proper divisors (68721238953).

133120311111 is a wasteful number, since it uses less digits than its factorization.

133120311111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91853 (or 91844 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

Adding to 133120311111 its reverse (111113021331), we get a palindrome (244233332442).

The spelling of 133120311111 in words is "one hundred thirty-three billion, one hundred twenty million, three hundred eleven thousand, one hundred eleven".