133031002111021 has 12 divisors (see below), whose sum is σ = 154774571131260. Its totient is φ = 114008725642560.

The previous prime is 133031002111013. The next prime is 133031002111061. The reversal of 133031002111021 is 120111200130331.

It can be written as a sum of positive squares in 2 ways, for example, as 47808305066025 + 85222697044996 = 6914355^2 + 9231614^2 .

It is not a de Polignac number, because 133031002111021 - 2³ = 133031002111013 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133031002111021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133031002111061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 212155120 + ... + 212781241.

It is an arithmetic number, because the mean of its divisors is an integer number (12897880927605).

Almost surely, 2^{133031002111021} is an apocalyptic number.

It is an amenable number.

133031002111021 is a deficient number, since it is larger than the sum of its proper divisors (21743569020239).

133031002111021 is an equidigital number, since it uses as much as digits as its factorization.

133031002111021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424942764 (or 424942757 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 133031002111021 its reverse (120111200130331), we get a palindrome (253142202241352).

The spelling of 133031002111021 in words is "one hundred thirty-three trillion, thirty-one billion, two million, one hundred eleven thousand, twenty-one".