231001300021333 has 4 divisors (see below), whose sum is σ = 231282665795628. Its totient is φ = 230719934247040.

The previous prime is 231001300021291. The next prime is 231001300021363. The reversal of 231001300021333 is 333120003100132.

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 25317572165649 + 205683727855684 = 5031657^2 + 14341678^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231001300021333 is a prime.

It is a super-2 number, since 2×231001300021333² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231001300021363) 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, 140682885916 + ... + 140682887557.

It is an arithmetic number, because the mean of its divisors is an integer number (57820666448907).

Almost surely, 2^{231001300021333} is an apocalyptic number.

It is an amenable number.

231001300021333 is a deficient number, since it is larger than the sum of its proper divisors (281365774295).

231001300021333 is an equidigital number, since it uses as much as digits as its factorization.

231001300021333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281365774294.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 231001300021333 its reverse (333120003100132), we get a palindrome (564121303121465).

The spelling of 231001300021333 in words is "two hundred thirty-one trillion, one billion, three hundred million, twenty-one thousand, three hundred thirty-three".