1243101223 has 8 divisors (see below), whose sum is σ = 1529970848. Its totient is φ = 983552544.

The previous prime is 1243101221. The next prime is 1243101241. The reversal of 1243101223 is 3221013421.

It is a happy number.

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

It is not a de Polignac number, because 1243101223 - 2¹ = 1243101221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1243101223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243101221) 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, 6830136 + ... + 6830317.

It is an arithmetic number, because the mean of its divisors is an integer number (191246356).

Almost surely, 2^1243101223 is an apocalyptic number.

1243101223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1243101223 is a deficient number, since it is larger than the sum of its proper divisors (286869625).

1243101223 is a wasteful number, since it uses less digits than its factorization.

1243101223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13660473.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1243101223 is about 35257.6406329181. The cubic root of 1243101223 is about 1075.2319594637.

Adding to 1243101223 its reverse (3221013421), we get a palindrome (4464114644).

The spelling of 1243101223 in words is "one billion, two hundred forty-three million, one hundred one thousand, two hundred twenty-three".