1243222023 has 16 divisors (see below), whose sum is σ = 1669288320.
Its totient is φ = 823005216.
The previous prime is 1243222021. The next prime is 1243222031. The reversal of 1243222023 is 3202223421.
Adding to 1243222023 its reverse (3202223421), we get a palindrome (4445445444).
It is not a de Polignac number, because 1243222023 - 21 = 1243222021 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1243222021) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 283161 + ... + 287517.
It is an arithmetic number, because the mean of its divisors is an integer number (104330520).
Almost surely, 21243222023 is an apocalyptic number.
1243222023 is a deficient number, since it is larger than the sum of its proper divisors (426066297).
1243222023 is a wasteful number, since it uses less digits than its factorization.
1243222023 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5006.
The product of its (nonzero) digits is 1152, while the sum is 21.
The square root of 1243222023 is about 35259.3536951544.
The cubic root of 1243222023 is about 1075.2667873633.
The spelling of 1243222023 in words is "one billion, two hundred forty-three million, two hundred twenty-two thousand, twenty-three".