231220233301 has 4 divisors (see below), whose sum is σ = 231225168672. Its totient is φ = 231215297932.

The previous prime is 231220233287. The next prime is 231220233311. The reversal of 231220233301 is 103332022132.

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 a de Polignac number, because none of the positive numbers 2^k-231220233301 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 (231220233311) 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, 2396731 + ... + 2491336.

It is an arithmetic number, because the mean of its divisors is an integer number (57806292168).

Almost surely, 2^231220233301 is an apocalyptic number.

It is an amenable number.

231220233301 is a deficient number, since it is larger than the sum of its proper divisors (4935371).

231220233301 is an equidigital number, since it uses as much as digits as its factorization.

231220233301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4935370.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 231220233301 its reverse (103332022132), we get a palindrome (334552255433).

The spelling of 231220233301 in words is "two hundred thirty-one billion, two hundred twenty million, two hundred thirty-three thousand, three hundred one".