1142006121 has 10 divisors (see below), whose sum is σ = 1705959882. Its totient is φ = 761337360.

The previous prime is 1142006111. The next prime is 1142006149. The reversal of 1142006121 is 1216002411.

1142006121 is a `hidden beast` number, since 11 + 42 + 0 + 0 + 612 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 933608025 + 208398096 = 30555^2 + 14436^2 .

It is not a de Polignac number, because 1142006121 - 2¹⁰ = 1142005097 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1142006094 and 1142006103.

It is not an unprimeable number, because it can be changed into a prime (1142006111) by changing a digit.

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 in 9 ways as a sum of consecutive naturals, for example, 7049340 + ... + 7049501.

Almost surely, 2^1142006121 is an apocalyptic number.

It is an amenable number.

1142006121 is a deficient number, since it is larger than the sum of its proper divisors (563953761).

1142006121 is an equidigital number, since it uses as much as digits as its factorization.

1142006121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14098853 (or 14098844 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 1142006121 is about 33793.5810620893. The cubic root of 1142006121 is about 1045.2563402795.

Adding to 1142006121 its reverse (1216002411), we get a palindrome (2358008532).

The spelling of 1142006121 in words is "one billion, one hundred forty-two million, six thousand, one hundred twenty-one".