1242131104 has 12 divisors (see below), whose sum is σ = 2445445674. Its totient is φ = 621065536.

The previous prime is 1242131089. The next prime is 1242131147. The reversal of 1242131104 is 4011312421.

It can be written as a sum of positive squares in only one way, i.e., 1141088400 + 101042704 = 33780^2 + 10052^2 .

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, 19408267 + ... + 19408330.

Almost surely, 2^1242131104 is an apocalyptic number.

It is an amenable number.

1242131104 is a deficient number, since it is larger than the sum of its proper divisors (1203314570).

1242131104 is an equidigital number, since it uses as much as digits as its factorization.

1242131104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38816607 (or 38816599 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1242131104 is about 35243.8803765987. The cubic root of 1242131104 is about 1074.9521821889.

Adding to 1242131104 its reverse (4011312421), we get a palindrome (5253443525).

The spelling of 1242131104 in words is "one billion, two hundred forty-two million, one hundred thirty-one thousand, one hundred four".