161032003112 has 16 divisors (see below), whose sum is σ = 309299274900. Its totient is φ = 78552196480.

The previous prime is 161032003103. The next prime is 161032003117. The reversal of 161032003112 is 211300230161.

It can be written as a sum of positive squares in 2 ways, for example, as 150958669156 + 10073333956 = 388534^2 + 100366^2 .

It is not an unprimeable number, because it can be changed into a prime (161032003117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245475287 + ... + 245475942.

Almost surely, 2^161032003112 is an apocalyptic number.

It is an amenable number.

161032003112 is a deficient number, since it is larger than the sum of its proper divisors (148267271788).

161032003112 is a wasteful number, since it uses less digits than its factorization.

161032003112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490951276 (or 490951272 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 161032003112 its reverse (211300230161), we get a palindrome (372332233273).

The spelling of 161032003112 in words is "one hundred sixty-one billion, thirty-two million, three thousand, one hundred twelve".