16380031 has 2 divisors, whose sum is σ = 16380032. Its totient is φ = 16380030.

The previous prime is 16380029. The next prime is 16380043. The reversal of 16380031 is 13008361.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16380031 - 2¹ = 16380029 is a prime.

It is a super-2 number, since 2×16380031² = 536610831121922, which contains 22 as substring.

Together with 16380029, it forms a pair of twin primes.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 16379984 and 16380011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16380731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8190015 + 8190016.

It is an arithmetic number, because the mean of its divisors is an integer number (8190016).

Almost surely, 2^16380031 is an apocalyptic number.

16380031 is a deficient number, since it is larger than the sum of its proper divisors (1).

16380031 is an equidigital number, since it uses as much as digits as its factorization.

16380031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 16380031 is about 4047.2250987559. The cubic root of 16380031 is about 253.9636575610.

Adding to 16380031 its reverse (13008361), we get a palindrome (29388392).

The spelling of 16380031 in words is "sixteen million, three hundred eighty thousand, thirty-one".