231220320301 has 4 divisors (see below), whose sum is σ = 236139901632. Its totient is φ = 226300738972.

The previous prime is 231220320283. The next prime is 231220320367. The reversal of 231220320301 is 103023022132.

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 231220320301 - 2¹⁹ = 231219796013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231220320101) 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, 2459790595 + ... + 2459790688.

It is an arithmetic number, because the mean of its divisors is an integer number (59034975408).

Almost surely, 2^231220320301 is an apocalyptic number.

It is an amenable number.

231220320301 is a deficient number, since it is larger than the sum of its proper divisors (4919581331).

231220320301 is an equidigital number, since it uses as much as digits as its factorization.

231220320301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4919581330.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 231220320301 its reverse (103023022132), we get a palindrome (334243342433).

The spelling of 231220320301 in words is "two hundred thirty-one billion, two hundred twenty million, three hundred twenty thousand, three hundred one".