211420231016 has 16 divisors (see below), whose sum is σ = 398844916800. Its totient is φ = 105061586544.

The previous prime is 211420231013. The next prime is 211420231019. The reversal of 211420231016 is 610132024112.

It is an interprime number because it is at equal distance from previous prime (211420231013) and next prime (211420231019).

It is a junction number, because it is equal to n+sod(n) for n = 211420230982 and 211420231000.

It is not an unprimeable number, because it can be changed into a prime (211420231013) 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 in 3 ways as a sum of consecutive naturals, for example, 81064736 + ... + 81067343.

It is an arithmetic number, because the mean of its divisors is an integer number (24927807300).

Almost surely, 2^211420231016 is an apocalyptic number.

It is an amenable number.

211420231016 is a deficient number, since it is larger than the sum of its proper divisors (187424685784).

211420231016 is a wasteful number, since it uses less digits than its factorization.

211420231016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162132248 (or 162132244 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 211420231016 its reverse (610132024112), we get a palindrome (821552255128).

The spelling of 211420231016 in words is "two hundred eleven billion, four hundred twenty million, two hundred thirty-one thousand, sixteen".