1243055122 has 8 divisors (see below), whose sum is σ = 1874345472. Its totient is φ = 618273300.

The previous prime is 1243055119. The next prime is 1243055123. The reversal of 1243055122 is 2215503421.

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

It is not an unprimeable number, because it can be changed into a prime (1243055123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1626654 + ... + 1627417.

It is an arithmetic number, because the mean of its divisors is an integer number (234293184).

Almost surely, 2^1243055122 is an apocalyptic number.

1243055122 is a deficient number, since it is larger than the sum of its proper divisors (631290350).

1243055122 is a wasteful number, since it uses less digits than its factorization.

1243055122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3254264.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1243055122 is about 35256.9868536720. The cubic root of 1243055122 is about 1075.2186674699.

Adding to 1243055122 its reverse (2215503421), we get a palindrome (3458558543).

The spelling of 1243055122 in words is "one billion, two hundred forty-three million, fifty-five thousand, one hundred twenty-two".