1043774263321 has 2 divisors, whose sum is σ = 1043774263322. Its totient is φ = 1043774263320.

The previous prime is 1043774263277. The next prime is 1043774263351. The reversal of 1043774263321 is 1233624773401.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 532600742025 + 511173521296 = 729795^2 + 714964^2 .

It is a cyclic number.

It is not a de Polignac number, because 1043774263321 - 2⁷ = 1043774263193 is a prime.

It is not a weakly prime, because it can be changed into another prime (1043774263351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521887131660 + 521887131661.

It is an arithmetic number, because the mean of its divisors is an integer number (521887131661).

Almost surely, 2^{1043774263321} is an apocalyptic number.

It is an amenable number.

1043774263321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1043774263321 is an equidigital number, since it uses as much as digits as its factorization.

1043774263321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 508032, while the sum is 43.

The spelling of 1043774263321 in words is "one trillion, forty-three billion, seven hundred seventy-four million, two hundred sixty-three thousand, three hundred twenty-one".