133121132031133 has 4 divisors (see below), whose sum is σ = 133122005332348. Its totient is φ = 133120258729920.

The previous prime is 133121132031127. The next prime is 133121132031149. The reversal of 133121132031133 is 331130231121331.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 88737115921444 + 44384016109689 = 9420038^2 + 6662133^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133121132031133 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 (133121132031733) 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, 436421916 + ... + 436726837.

It is an arithmetic number, because the mean of its divisors is an integer number (33280501333087).

Almost surely, 2^{133121132031133} is an apocalyptic number.

It is an amenable number.

133121132031133 is a deficient number, since it is larger than the sum of its proper divisors (873301215).

133121132031133 is an equidigital number, since it uses as much as digits as its factorization.

133121132031133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873301214.

The product of its (nonzero) digits is 2916, while the sum is 28.

Adding to 133121132031133 its reverse (331130231121331), we get a palindrome (464251363152464).

The spelling of 133121132031133 in words is "one hundred thirty-three trillion, one hundred twenty-one billion, one hundred thirty-two million, thirty-one thousand, one hundred thirty-three".