213242232301331 has 4 divisors (see below), whose sum is σ = 213302351344152. Its totient is φ = 213182113258512.

The previous prime is 213242232301297. The next prime is 213242232301429. The reversal of 213242232301331 is 133103232242312.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213242232301331 is a prime.

It is a super-2 number, since 2×213242232301331² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213242232381331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30059516090 + ... + 30059523183.

It is an arithmetic number, because the mean of its divisors is an integer number (53325587836038).

Almost surely, 2^{213242232301331} is an apocalyptic number.

213242232301331 is a deficient number, since it is larger than the sum of its proper divisors (60119042821).

213242232301331 is an equidigital number, since it uses as much as digits as its factorization.

213242232301331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60119042820.

The product of its (nonzero) digits is 31104, while the sum is 32.

Adding to 213242232301331 its reverse (133103232242312), we get a palindrome (346345464543643).

The spelling of 213242232301331 in words is "two hundred thirteen trillion, two hundred forty-two billion, two hundred thirty-two million, three hundred one thousand, three hundred thirty-one".