133131210311 has 16 divisors (see below), whose sum is σ = 146376084096. Its totient is φ = 120077100000.

The previous prime is 133131210287. The next prime is 133131210323. The reversal of 133131210311 is 113012131331.

It is a de Polignac number, because none of the positive numbers 2^k-133131210311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133131210811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8957036 + ... + 8971886.

It is an arithmetic number, because the mean of its divisors is an integer number (9148505256).

Almost surely, 2^133131210311 is an apocalyptic number.

133131210311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

133131210311 is a deficient number, since it is larger than the sum of its proper divisors (13244873785).

133131210311 is a wasteful number, since it uses less digits than its factorization.

133131210311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21214.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 133131210311 its reverse (113012131331), we get a palindrome (246143341642).

The spelling of 133131210311 in words is "one hundred thirty-three billion, one hundred thirty-one million, two hundred ten thousand, three hundred eleven".