1266291183103 has 2 divisors, whose sum is σ = 1266291183104. Its totient is φ = 1266291183102.

The previous prime is 1266291183089. The next prime is 1266291183121. The reversal of 1266291183103 is 3013811926621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1266291183103 - 2⁵ = 1266291183071 is a prime.

It is a super-3 number, since 3×1266291183103³ (a number of 37 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1266291183103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1266291183133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 633145591551 + 633145591552.

It is an arithmetic number, because the mean of its divisors is an integer number (633145591552).

Almost surely, 2^{1266291183103} is an apocalyptic number.

1266291183103 is a deficient number, since it is larger than the sum of its proper divisors (1).

1266291183103 is an equidigital number, since it uses as much as digits as its factorization.

1266291183103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 43.

The spelling of 1266291183103 in words is "one trillion, two hundred sixty-six billion, two hundred ninety-one million, one hundred eighty-three thousand, one hundred three".