16311012 has 24 divisors (see below), whose sum is σ = 38138016. Its totient is φ = 5425728.

The previous prime is 16311011. The next prime is 16311013. The reversal of 16311012 is 21011361.

It is an interprime number because it is at equal distance from previous prime (16311011) and next prime (16311013).

It is a super-2 number, since 2×16311012² = 532098224928288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16310982 and 16311000.

It is not an unprimeable number, because it can be changed into a prime (16311011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6303 + ... + 8505.

It is an arithmetic number, because the mean of its divisors is an integer number (1589084).

Almost surely, 2^16311012 is an apocalyptic number.

16311012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16311012 is an abundant number, since it is smaller than the sum of its proper divisors (21827004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16311012 is a wasteful number, since it uses less digits than its factorization.

16311012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2827 (or 2825 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 16311012 is about 4038.6893913744. The cubic root of 16311012 is about 253.6064544394.

Adding to 16311012 its reverse (21011361), we get a palindrome (37322373).

It can be divided in two parts, 163 and 11012, that added together give a triangular number (11175 = T₁₄₉).

The spelling of 16311012 in words is "sixteen million, three hundred eleven thousand, twelve".