10617220231 has 4 divisors (see below), whose sum is σ = 10876176864. Its totient is φ = 10358263600.

The previous prime is 10617220217. The next prime is 10617220259. The reversal of 10617220231 is 13202271601.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13202271601 = 2729 ⋅4837769.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10617220231 is a prime.

It is a super-2 number, since 2×10617220231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10617220196 and 10617220205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10617220291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129478255 + ... + 129478336.

It is an arithmetic number, because the mean of its divisors is an integer number (2719044216).

Almost surely, 2^10617220231 is an apocalyptic number.

10617220231 is a deficient number, since it is larger than the sum of its proper divisors (258956633).

10617220231 is an equidigital number, since it uses as much as digits as its factorization.

10617220231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258956632.

The product of its (nonzero) digits is 1008, while the sum is 25.

Adding to 10617220231 its reverse (13202271601), we get a palindrome (23819491832).

The spelling of 10617220231 in words is "ten billion, six hundred seventeen million, two hundred twenty thousand, two hundred thirty-one".