161122204003 has 2 divisors, whose sum is σ = 161122204004. Its totient is φ = 161122204002.

The previous prime is 161122203989. The next prime is 161122204073. The reversal of 161122204003 is 300402221161.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161122204003 is a prime.

It is not a weakly prime, because it can be changed into another prime (161122204073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80561102001 + 80561102002.

It is an arithmetic number, because the mean of its divisors is an integer number (80561102002).

Almost surely, 2^161122204003 is an apocalyptic number.

161122204003 is a deficient number, since it is larger than the sum of its proper divisors (1).

161122204003 is an equidigital number, since it uses as much as digits as its factorization.

161122204003 is an evil number, because the sum of its binary digits is even.

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

Adding to 161122204003 its reverse (300402221161), we get a palindrome (461524425164).

The spelling of 161122204003 in words is "one hundred sixty-one billion, one hundred twenty-two million, two hundred four thousand, three".