1242014121 has 16 divisors (see below), whose sum is σ = 1841843520. Its totient is φ = 827189280.

The previous prime is 1242014089. The next prime is 1242014129. The reversal of 1242014121 is 1214102421.

It is not a de Polignac number, because 1242014121 - 2⁵ = 1242014089 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1242014094 and 1242014103.

It is not an unprimeable number, because it can be changed into a prime (1242014129) 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 15 ways as a sum of consecutive naturals, for example, 5626 + ... + 50156.

It is an arithmetic number, because the mean of its divisors is an integer number (115115220).

Almost surely, 2^1242014121 is an apocalyptic number.

It is an amenable number.

1242014121 is a deficient number, since it is larger than the sum of its proper divisors (599829399).

1242014121 is a wasteful number, since it uses less digits than its factorization.

1242014121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45573 (or 45567 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1242014121 is about 35242.2207160673. The cubic root of 1242014121 is about 1074.9184350590.

Adding to 1242014121 its reverse (1214102421), we get a palindrome (2456116542).

The spelling of 1242014121 in words is "one billion, two hundred forty-two million, fourteen thousand, one hundred twenty-one".