133311011 has 16 divisors (see below), whose sum is σ = 143093760. Its totient is φ = 123832800.

The previous prime is 133311007. The next prime is 133311019. The reversal of 133311011 is 110113331.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 133311011 - 2² = 133311007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133311019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243440 + ... + 243986.

It is an arithmetic number, because the mean of its divisors is an integer number (8943360).

Almost surely, 2^133311011 is an apocalyptic number.

133311011 is a deficient number, since it is larger than the sum of its proper divisors (9782749).

133311011 is a wasteful number, since it uses less digits than its factorization.

133311011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794.

The product of its (nonzero) digits is 27, while the sum is 14.

The square root of 133311011 is about 11546.0387579464. The cubic root of 133311011 is about 510.8444436469.

Adding to 133311011 its reverse (110113331), we get a palindrome (243424342).

The spelling of 133311011 in words is "one hundred thirty-three million, three hundred eleven thousand, eleven".