1279727972203 has 2 divisors, whose sum is σ = 1279727972204. Its totient is φ = 1279727972202.

The previous prime is 1279727972197. The next prime is 1279727972233. The reversal of 1279727972203 is 3022797279721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1279727972203 - 2²⁹ = 1279191101291 is a prime.

It is not a weakly prime, because it can be changed into another prime (1279727972233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 639863986101 + 639863986102.

It is an arithmetic number, because the mean of its divisors is an integer number (639863986102).

Almost surely, 2^{1279727972203} is an apocalyptic number.

1279727972203 is a deficient number, since it is larger than the sum of its proper divisors (1).

1279727972203 is an equidigital number, since it uses as much as digits as its factorization.

1279727972203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9335088, while the sum is 58.

The spelling of 1279727972203 in words is "one trillion, two hundred seventy-nine billion, seven hundred twenty-seven million, nine hundred seventy-two thousand, two hundred three".