1242351122 has 4 divisors (see below), whose sum is σ = 1863526686. Its totient is φ = 621175560.

The previous prime is 1242351101. The next prime is 1242351139. The reversal of 1242351122 is 2211532421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1241787121 + 564001 = 35239^2 + 751^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 310587779 + ... + 310587782.

Almost surely, 2^1242351122 is an apocalyptic number.

1242351122 is a deficient number, since it is larger than the sum of its proper divisors (621175564).

1242351122 is an equidigital number, since it uses as much as digits as its factorization.

1242351122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621175563.

The product of its digits is 960, while the sum is 23.

The square root of 1242351122 is about 35247.0016029733. The cubic root of 1242351122 is about 1075.0156470050.

Adding to 1242351122 its reverse (2211532421), we get a palindrome (3453883543).

The spelling of 1242351122 in words is "one billion, two hundred forty-two million, three hundred fifty-one thousand, one hundred twenty-two".