912123203 has 2 divisors, whose sum is σ = 912123204. Its totient is φ = 912123202.

The previous prime is 912123197. The next prime is 912123229. The reversal of 912123203 is 302321219.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-912123203 is a prime.

It is not a weakly prime, because it can be changed into another prime (912123293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 456061601 + 456061602.

It is an arithmetic number, because the mean of its divisors is an integer number (456061602).

Almost surely, 2^912123203 is an apocalyptic number.

912123203 is a deficient number, since it is larger than the sum of its proper divisors (1).

912123203 is an equidigital number, since it uses as much as digits as its factorization.

912123203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 912123203 is about 30201.3775016968. The cubic root of 912123203 is about 969.8051838889.

The spelling of 912123203 in words is "nine hundred twelve million, one hundred twenty-three thousand, two hundred three".