1266700423 has 2 divisors, whose sum is σ = 1266700424. Its totient is φ = 1266700422.

The previous prime is 1266700411. The next prime is 1266700427. The reversal of 1266700423 is 3240076621.

It is a strong prime.

It is an emirp because it is prime and its reverse (3240076621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1266700423 - 2¹⁷ = 1266569351 is a prime.

It is a super-3 number, since 3×1266700423³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1266700427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 633350211 + 633350212.

It is an arithmetic number, because the mean of its divisors is an integer number (633350212).

Almost surely, 2^1266700423 is an apocalyptic number.

1266700423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1266700423 is an equidigital number, since it uses as much as digits as its factorization.

1266700423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 1266700423 is about 35590.7350724876. The cubic root of 1266700423 is about 1081.9934669662.

The spelling of 1266700423 in words is "one billion, two hundred sixty-six million, seven hundred thousand, four hundred twenty-three".