201231302121203 has 2 divisors, whose sum is σ = 201231302121204. Its totient is φ = 201231302121202.

The previous prime is 201231302121193. The next prime is 201231302121211. The reversal of 201231302121203 is 302121203132102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201231302121203 - 2¹² = 201231302117107 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (201231302121103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100615651060601 + 100615651060602.

It is an arithmetic number, because the mean of its divisors is an integer number (100615651060602).

Almost surely, 2^{201231302121203} is an apocalyptic number.

201231302121203 is a deficient number, since it is larger than the sum of its proper divisors (1).

201231302121203 is an equidigital number, since it uses as much as digits as its factorization.

201231302121203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 201231302121203 its reverse (302121203132102), we get a palindrome (503352505253305).

The spelling of 201231302121203 in words is "two hundred one trillion, two hundred thirty-one billion, three hundred two million, one hundred twenty-one thousand, two hundred three".