203100211231 has 2 divisors, whose sum is σ = 203100211232. Its totient is φ = 203100211230.

The previous prime is 203100211207. The next prime is 203100211247. The reversal of 203100211231 is 132112001302.

It is an a-pointer prime, because the next prime (203100211247) can be obtained adding 203100211231 to its sum of digits (16).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 203100211231 - 2¹⁹ = 203099686943 is a prime.

It is a super-2 number, since 2×203100211231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203100211291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101550105615 + 101550105616.

It is an arithmetic number, because the mean of its divisors is an integer number (101550105616).

Almost surely, 2^203100211231 is an apocalyptic number.

203100211231 is a deficient number, since it is larger than the sum of its proper divisors (1).

203100211231 is an equidigital number, since it uses as much as digits as its factorization.

203100211231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 203100211231 its reverse (132112001302), we get a palindrome (335212212533).

The spelling of 203100211231 in words is "two hundred three billion, one hundred million, two hundred eleven thousand, two hundred thirty-one".