133412011 has 4 divisors (see below), whose sum is σ = 134733024. Its totient is φ = 132091000.

The previous prime is 133411969. The next prime is 133412051. The reversal of 133412011 is 110214331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 133412011 - 2¹⁵ = 133379243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133412051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 660355 + ... + 660556.

It is an arithmetic number, because the mean of its divisors is an integer number (33683256).

Almost surely, 2^133412011 is an apocalyptic number.

133412011 is a deficient number, since it is larger than the sum of its proper divisors (1321013).

133412011 is a wasteful number, since it uses less digits than its factorization.

133412011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1321012.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 133412011 is about 11550.4117242633. The cubic root of 133412011 is about 510.9734209007.

Adding to 133412011 its reverse (110214331), we get a palindrome (243626342).

The spelling of 133412011 in words is "one hundred thirty-three million, four hundred twelve thousand, eleven".