211420231017 has 8 divisors (see below), whose sum is σ = 285289950624. Its totient is φ = 139248666048.

The previous prime is 211420231013. The next prime is 211420231019. The reversal of 211420231017 is 710132024112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 211420231017 - 2² = 211420231013 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211420231013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 424538368 + ... + 424538865.

It is an arithmetic number, because the mean of its divisors is an integer number (35661243828).

Almost surely, 2^211420231017 is an apocalyptic number.

It is an amenable number.

211420231017 is a deficient number, since it is larger than the sum of its proper divisors (73869719607).

211420231017 is an equidigital number, since it uses as much as digits as its factorization.

211420231017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849077319.

The product of its (nonzero) digits is 672, while the sum is 24.

Adding to 211420231017 its reverse (710132024112), we get a palindrome (921552255129).

The spelling of 211420231017 in words is "two hundred eleven billion, four hundred twenty million, two hundred thirty-one thousand, seventeen".