1242124120 has 32 divisors (see below), whose sum is σ = 2884936320. Its totient is φ = 480821760.

The previous prime is 1242124097. The next prime is 1242124129. The reversal of 1242124120 is 214212421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242124129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 499617 + ... + 502096.

It is an arithmetic number, because the mean of its divisors is an integer number (90154260).

Almost surely, 2^1242124120 is an apocalyptic number.

1242124120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1242124120 is an abundant number, since it is smaller than the sum of its proper divisors (1642812200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1242124120 is a wasteful number, since it uses less digits than its factorization.

1242124120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001755 (or 1001751 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 1242124120 is about 35243.7812954286. The cubic root of 1242124120 is about 1074.9501675115.

Adding to 1242124120 its reverse (214212421), we get a palindrome (1456336541).

The spelling of 1242124120 in words is "one billion, two hundred forty-two million, one hundred twenty-four thousand, one hundred twenty".