133231301311 has 4 divisors (see below), whose sum is σ = 133232060952. Its totient is φ = 133230541672.

The previous prime is 133231301309. The next prime is 133231301377. The reversal of 133231301311 is 113103132331.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 133231301311 - 2¹ = 133231301309 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 (133231301011) 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, 32361 + ... + 517213.

It is an arithmetic number, because the mean of its divisors is an integer number (33308015238).

Almost surely, 2^133231301311 is an apocalyptic number.

133231301311 is a deficient number, since it is larger than the sum of its proper divisors (759641).

133231301311 is an equidigital number, since it uses as much as digits as its factorization.

133231301311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759640.

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 133231301311 its reverse (113103132331), we get a palindrome (246334433642).

The spelling of 133231301311 in words is "one hundred thirty-three billion, two hundred thirty-one million, three hundred one thousand, three hundred eleven".