1042205440403 has 2 divisors, whose sum is σ = 1042205440404. Its totient is φ = 1042205440402.

The previous prime is 1042205440379. The next prime is 1042205440421. The reversal of 1042205440403 is 3040445022401.

1042205440403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (3040445022401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1042205440403 - 2¹⁶ = 1042205374867 is a prime.

It is a super-2 number, since 2×1042205440403² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1042205340403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521102720201 + 521102720202.

It is an arithmetic number, because the mean of its divisors is an integer number (521102720202).

Almost surely, 2^{1042205440403} is an apocalyptic number.

1042205440403 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042205440403 is an equidigital number, since it uses as much as digits as its factorization.

1042205440403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15360, while the sum is 29.

The spelling of 1042205440403 in words is "one trillion, forty-two billion, two hundred five million, four hundred forty thousand, four hundred three".