1261230410443 has 2 divisors, whose sum is σ = 1261230410444. Its totient is φ = 1261230410442.

The previous prime is 1261230410417. The next prime is 1261230410491. The reversal of 1261230410443 is 3440140321621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1261230410443 - 2²⁹ = 1260693539531 is a prime.

It is not a weakly prime, because it can be changed into another prime (1261230417443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 630615205221 + 630615205222.

It is an arithmetic number, because the mean of its divisors is an integer number (630615205222).

Almost surely, 2^{1261230410443} is an apocalyptic number.

1261230410443 is a deficient number, since it is larger than the sum of its proper divisors (1).

1261230410443 is an equidigital number, since it uses as much as digits as its factorization.

1261230410443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 31.

The spelling of 1261230410443 in words is "one trillion, two hundred sixty-one billion, two hundred thirty million, four hundred ten thousand, four hundred forty-three".