1266879203 has 2 divisors, whose sum is σ = 1266879204. Its totient is φ = 1266879202.

The previous prime is 1266879197. The next prime is 1266879209. The reversal of 1266879203 is 3029786621.

It is a balanced prime because it is at equal distance from previous prime (1266879197) and next prime (1266879209).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1266879203 is a prime.

It is not a weakly prime, because it can be changed into another prime (1266879209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 633439601 + 633439602.

It is an arithmetic number, because the mean of its divisors is an integer number (633439602).

Almost surely, 2^1266879203 is an apocalyptic number.

1266879203 is a deficient number, since it is larger than the sum of its proper divisors (1).

1266879203 is an equidigital number, since it uses as much as digits as its factorization.

1266879203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 1266879203 is about 35593.2465925771. The cubic root of 1266879203 is about 1082.0443681602.

The spelling of 1266879203 in words is "one billion, two hundred sixty-six million, eight hundred seventy-nine thousand, two hundred three".