161322130114 has 4 divisors (see below), whose sum is σ = 241983195174. Its totient is φ = 80661065056.

The previous prime is 161322130097. The next prime is 161322130121. The reversal of 161322130114 is 411031223161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 411031223161 = 13 ⋅31617786397.

It can be written as a sum of positive squares in only one way, i.e., 156948291889 + 4373838225 = 396167^2 + 66135^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40330532527 + ... + 40330532530.

Almost surely, 2^161322130114 is an apocalyptic number.

161322130114 is a deficient number, since it is larger than the sum of its proper divisors (80661065060).

161322130114 is an equidigital number, since it uses as much as digits as its factorization.

161322130114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80661065059.

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

Adding to 161322130114 its reverse (411031223161), we get a palindrome (572353353275).

The spelling of 161322130114 in words is "one hundred sixty-one billion, three hundred twenty-two million, one hundred thirty thousand, one hundred fourteen".