10113221231 has 4 divisors (see below), whose sum is σ = 10113592632. Its totient is φ = 10112849832.

The previous prime is 10113221119. The next prime is 10113221249. The reversal of 10113221231 is 13212231101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10113221231 is a prime.

It is a super-2 number, since 2×10113221231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10113221281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141320 + ... + 200493.

It is an arithmetic number, because the mean of its divisors is an integer number (2528398158).

Almost surely, 2^10113221231 is an apocalyptic number.

10113221231 is a deficient number, since it is larger than the sum of its proper divisors (371401).

10113221231 is an equidigital number, since it uses as much as digits as its factorization.

10113221231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371400.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 10113221231 its reverse (13212231101), we get a palindrome (23325452332).

The spelling of 10113221231 in words is "ten billion, one hundred thirteen million, two hundred twenty-one thousand, two hundred thirty-one".