1242104120 has 16 divisors (see below), whose sum is σ = 2794734360. Its totient is φ = 496841632.

The previous prime is 1242104111. The next prime is 1242104137. The reversal of 1242104120 is 214012421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15526262 + ... + 15526341.

Almost surely, 2^1242104120 is an apocalyptic number.

1242104120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1242104120 is an abundant number, since it is smaller than the sum of its proper divisors (1552630240).

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

1242104120 is a wasteful number, since it uses less digits than its factorization.

1242104120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31052614 (or 31052610 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1242104120 is about 35243.4975562869. The cubic root of 1242104120 is about 1074.9443980616.

Adding to 1242104120 its reverse (214012421), we get a palindrome (1456116541).

The spelling of 1242104120 in words is "one billion, two hundred forty-two million, one hundred four thousand, one hundred twenty".