1243231022 has 16 divisors (see below), whose sum is σ = 2039703552. Its totient is φ = 563625720.

The previous prime is 1243231019. The next prime is 1243231027. The reversal of 1243231022 is 2201323421.

It is a junction number, because it is equal to n+sod(n) for n = 1243230985 and 1243231003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243231027) 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, 65348 + ... + 82199.

It is an arithmetic number, because the mean of its divisors is an integer number (127481472).

Almost surely, 2^1243231022 is an apocalyptic number.

1243231022 is a deficient number, since it is larger than the sum of its proper divisors (796472530).

1243231022 is a wasteful number, since it uses less digits than its factorization.

1243231022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147943.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1243231022 is about 35259.4813064515. The cubic root of 1243231022 is about 1075.2693817785.

Adding to 1243231022 its reverse (2201323421), we get a palindrome (3444554443).

The spelling of 1243231022 in words is "one billion, two hundred forty-three million, two hundred thirty-one thousand, twenty-two".