231220223242301 has 4 divisors (see below), whose sum is σ = 236597437736352. Its totient is φ = 225843008748252.

The previous prime is 231220223242291. The next prime is 231220223242357. The reversal of 231220223242301 is 103242322022132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 231220223242301 - 2¹⁰ = 231220223241277 is a prime.

It is a super-3 number, since 3×231220223242301³ (a number of 44 digits) contains 333 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 (231220223242201) 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, 2688607246961 + ... + 2688607247046.

It is an arithmetic number, because the mean of its divisors is an integer number (59149359434088).

Almost surely, 2^{231220223242301} is an apocalyptic number.

It is an amenable number.

231220223242301 is a deficient number, since it is larger than the sum of its proper divisors (5377214494051).

231220223242301 is an equidigital number, since it uses as much as digits as its factorization.

231220223242301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5377214494050.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 231220223242301 its reverse (103242322022132), we get a palindrome (334462545264433).

The spelling of 231220223242301 in words is "two hundred thirty-one trillion, two hundred twenty billion, two hundred twenty-three million, two hundred forty-two thousand, three hundred one".