161420104003 has 2 divisors, whose sum is σ = 161420104004. Its totient is φ = 161420104002.

The previous prime is 161420103997. The next prime is 161420104033. The reversal of 161420104003 is 300401024161.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161420104003 is a prime.

It is not a weakly prime, because it can be changed into another prime (161420104033) 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, 80710052001 + 80710052002.

It is an arithmetic number, because the mean of its divisors is an integer number (80710052002).

Almost surely, 2^161420104003 is an apocalyptic number.

161420104003 is a deficient number, since it is larger than the sum of its proper divisors (1).

161420104003 is an equidigital number, since it uses as much as digits as its factorization.

161420104003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 161420104003 its reverse (300401024161), we get a palindrome (461821128164).

The spelling of 161420104003 in words is "one hundred sixty-one billion, four hundred twenty million, one hundred four thousand, three".