133343111 has 16 divisors (see below), whose sum is σ = 149700096. Its totient is φ = 117720000.

The previous prime is 133343107. The next prime is 133343113. The reversal of 133343111 is 111343331.

It is a cyclic number.

It is not a de Polignac number, because 133343111 - 2² = 133343107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133343113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121676 + ... + 122766.

It is an arithmetic number, because the mean of its divisors is an integer number (9356256).

Almost surely, 2^133343111 is an apocalyptic number.

133343111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

133343111 is a deficient number, since it is larger than the sum of its proper divisors (16356985).

133343111 is a wasteful number, since it uses less digits than its factorization.

133343111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1414.

The product of its digits is 324, while the sum is 20.

The square root of 133343111 is about 11547.4287614170. The cubic root of 133343111 is about 510.8854424874.

Adding to 133343111 its reverse (111343331), we get a palindrome (244686442).

It can be divided in two parts, 1333 and 43111, that added together give a palindrome (44444).

The spelling of 133343111 in words is "one hundred thirty-three million, three hundred forty-three thousand, one hundred eleven".