1231106223 has 8 divisors (see below), whose sum is σ = 1642053168. Its totient is φ = 820448384.

The previous prime is 1231106183. The next prime is 1231106243. The reversal of 1231106223 is 3226011321.

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

It is a cyclic number.

It is not a de Polignac number, because 1231106223 - 2¹⁶ = 1231040687 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1231106223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231106243) 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, 62136 + ... + 79517.

It is an arithmetic number, because the mean of its divisors is an integer number (205256646).

Almost surely, 2^1231106223 is an apocalyptic number.

1231106223 is a deficient number, since it is larger than the sum of its proper divisors (410946945).

1231106223 is a wasteful number, since it uses less digits than its factorization.

1231106223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144553.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 1231106223 is about 35087.1233218114. The cubic root of 1231106223 is about 1071.7623802129.

Adding to 1231106223 its reverse (3226011321), we get a palindrome (4457117544).

The spelling of 1231106223 in words is "one billion, two hundred thirty-one million, one hundred six thousand, two hundred twenty-three".