1042205340403 has 2 divisors, whose sum is σ = 1042205340404. Its totient is φ = 1042205340402.

The previous prime is 1042205340373. The next prime is 1042205340419. The reversal of 1042205340403 is 3040435022401.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1042205340403 is a prime.

It is not a weakly prime, because it can be changed into another prime (1042205440403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521102670201 + 521102670202.

It is an arithmetic number, because the mean of its divisors is an integer number (521102670202).

Almost surely, 2^{1042205340403} is an apocalyptic number.

1042205340403 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042205340403 is an equidigital number, since it uses as much as digits as its factorization.

1042205340403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 28.

The spelling of 1042205340403 in words is "one trillion, forty-two billion, two hundred five million, three hundred forty thousand, four hundred three".