213331301133231 has 4 divisors (see below), whose sum is σ = 284441734844312. Its totient is φ = 142220867422152.

The previous prime is 213331301133221. The next prime is 213331301133319. The reversal of 213331301133231 is 132331103133312.

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

It is not a de Polignac number, because 213331301133231 - 2²² = 213331296938927 is a prime.

It is a super-2 number, since 2×213331301133231² (a number of 29 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 (213331301133211) 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, 35555216855536 + ... + 35555216855541.

It is an arithmetic number, because the mean of its divisors is an integer number (71110433711078).

Almost surely, 2^{213331301133231} is an apocalyptic number.

213331301133231 is a deficient number, since it is larger than the sum of its proper divisors (71110433711081).

213331301133231 is an equidigital number, since it uses as much as digits as its factorization.

213331301133231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71110433711080.

The product of its (nonzero) digits is 8748, while the sum is 30.

Adding to 213331301133231 its reverse (132331103133312), we get a palindrome (345662404266543).

The spelling of 213331301133231 in words is "two hundred thirteen trillion, three hundred thirty-one billion, three hundred one million, one hundred thirty-three thousand, two hundred thirty-one".