1268523043 has 2 divisors, whose sum is σ = 1268523044. Its totient is φ = 1268523042.

The previous prime is 1268523037. The next prime is 1268523083. The reversal of 1268523043 is 3403258621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1268523043 - 2⁹ = 1268522531 is a prime.

It is not a weakly prime, because it can be changed into another prime (1268523083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 634261521 + 634261522.

It is an arithmetic number, because the mean of its divisors is an integer number (634261522).

Almost surely, 2^1268523043 is an apocalyptic number.

1268523043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1268523043 is an equidigital number, since it uses as much as digits as its factorization.

1268523043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 1268523043 is about 35616.3311277285. The cubic root of 1268523043 is about 1082.5121683638.

The spelling of 1268523043 in words is "one billion, two hundred sixty-eight million, five hundred twenty-three thousand, forty-three".