231302202101 has 2 divisors, whose sum is σ = 231302202102. Its totient is φ = 231302202100.

The previous prime is 231302202049. The next prime is 231302202107. The reversal of 231302202101 is 101202203132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210153480625 + 21148721476 = 458425^2 + 145426^2 .

It is a cyclic number.

It is not a de Polignac number, because 231302202101 - 2²⁶ = 231235093237 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231302202101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231302202107) 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 as a sum of consecutive naturals, namely, 115651101050 + 115651101051.

It is an arithmetic number, because the mean of its divisors is an integer number (115651101051).

Almost surely, 2^231302202101 is an apocalyptic number.

It is an amenable number.

231302202101 is a deficient number, since it is larger than the sum of its proper divisors (1).

231302202101 is an equidigital number, since it uses as much as digits as its factorization.

231302202101 is an odious number, because the sum of its binary digits is odd.

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

Adding to 231302202101 its reverse (101202203132), we get a palindrome (332504405233).

The spelling of 231302202101 in words is "two hundred thirty-one billion, three hundred two million, two hundred two thousand, one hundred one".