133331011 has 8 divisors (see below), whose sum is σ = 146430000. Its totient is φ = 120395040.

The previous prime is 133330997. The next prime is 133331041. The reversal of 133331011 is 110133331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133331011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133331041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39036 + ... + 42313.

It is an arithmetic number, because the mean of its divisors is an integer number (18303750).

Almost surely, 2^133331011 is an apocalyptic number.

133331011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

133331011 is a deficient number, since it is larger than the sum of its proper divisors (13098989).

133331011 is a wasteful number, since it uses less digits than its factorization.

133331011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81509.

The product of its (nonzero) digits is 81, while the sum is 16.

The square root of 133331011 is about 11546.9048233715. The cubic root of 133331011 is about 510.8699888686.

Adding to 133331011 its reverse (110133331), we get a palindrome (243464342).

The spelling of 133331011 in words is "one hundred thirty-three million, three hundred thirty-one thousand, eleven".