16312012 has 6 divisors (see below), whose sum is σ = 28546028. Its totient is φ = 8156004.

The previous prime is 16312003. The next prime is 16312019. The reversal of 16312012 is 21021361.

It is not an unprimeable number, because it can be changed into a prime (16312019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2038998 + ... + 2039005.

Almost surely, 2^16312012 is an apocalyptic number.

It is an amenable number.

16312012 is a deficient number, since it is larger than the sum of its proper divisors (12234016).

16312012 is a wasteful number, since it uses less digits than its factorization.

16312012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4078007 (or 4078005 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 16312012 is about 4038.8131920157. The cubic root of 16312012 is about 253.6116370582.

Adding to 16312012 its reverse (21021361), we get a palindrome (37333373).

The spelling of 16312012 in words is "sixteen million, three hundred twelve thousand, twelve".