133313331311 has 8 divisors (see below), whose sum is σ = 135050736240. Its totient is φ = 131581248832.

The previous prime is 133313331293. The next prime is 133313331341. The reversal of 133313331311 is 113133313331.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 133313331311 - 2²² = 133309137007 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 (133313331341) 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, 1280180 + ... + 1380393.

It is an arithmetic number, because the mean of its divisors is an integer number (16881342030).

Almost surely, 2^133313331311 is an apocalyptic number.

133313331311 is a deficient number, since it is larger than the sum of its proper divisors (1737404929).

133313331311 is an equidigital number, since it uses as much as digits as its factorization.

133313331311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2661225.

The product of its digits is 2187, while the sum is 26.

Adding to 133313331311 its reverse (113133313331), we get a palindrome (246446644642).

The spelling of 133313331311 in words is "one hundred thirty-three billion, three hundred thirteen million, three hundred thirty-one thousand, three hundred eleven".