231202321001 has 2 divisors, whose sum is σ = 231202321002. Its totient is φ = 231202321000.

The previous prime is 231202320977. The next prime is 231202321003. The reversal of 231202321001 is 100123202132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 199182797401 + 32019523600 = 446299^2 + 178940^2 .

It is a cyclic number.

It is not a de Polignac number, because 231202321001 - 2¹⁴ = 231202304617 is a prime.

Together with 231202321003, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (231202321003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115601160500 + 115601160501.

It is an arithmetic number, because the mean of its divisors is an integer number (115601160501).

Almost surely, 2^231202321001 is an apocalyptic number.

It is an amenable number.

231202321001 is a deficient number, since it is larger than the sum of its proper divisors (1).

231202321001 is an equidigital number, since it uses as much as digits as its factorization.

231202321001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 231202321001 its reverse (100123202132), we get a palindrome (331325523133).

The spelling of 231202321001 in words is "two hundred thirty-one billion, two hundred two million, three hundred twenty-one thousand, one".