203231310122311 has 2 divisors, whose sum is σ = 203231310122312. Its totient is φ = 203231310122310.

The previous prime is 203231310122299. The next prime is 203231310122359. The reversal of 203231310122311 is 113221013132302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 203231310122311 - 2²⁹ = 203230773251399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203231310722311) 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, 101615655061155 + 101615655061156.

It is an arithmetic number, because the mean of its divisors is an integer number (101615655061156).

Almost surely, 2^{203231310122311} is an apocalyptic number.

203231310122311 is a deficient number, since it is larger than the sum of its proper divisors (1).

203231310122311 is an equidigital number, since it uses as much as digits as its factorization.

203231310122311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 203231310122311 its reverse (113221013132302), we get a palindrome (316452323254613).

The spelling of 203231310122311 in words is "two hundred three trillion, two hundred thirty-one billion, three hundred ten million, one hundred twenty-two thousand, three hundred eleven".