1021403010049 has 2 divisors, whose sum is σ = 1021403010050. Its totient is φ = 1021403010048.

The previous prime is 1021403010011. The next prime is 1021403010077. The reversal of 1021403010049 is 9400103041201.

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., 997561488400 + 23841521649 = 998780^2 + 154407^2 .

It is a cyclic number.

It is not a de Polignac number, because 1021403010049 - 2⁹ = 1021403009537 is a prime.

It is not a weakly prime, because it can be changed into another prime (1021493010049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510701505024 + 510701505025.

It is an arithmetic number, because the mean of its divisors is an integer number (510701505025).

Almost surely, 2^{1021403010049} is an apocalyptic number.

It is an amenable number.

1021403010049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021403010049 is an equidigital number, since it uses as much as digits as its factorization.

1021403010049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 1021403010049 in words is "one trillion, twenty-one billion, four hundred three million, ten thousand, forty-nine".