1142001211 has 8 divisors (see below), whose sum is σ = 1232860160. Its totient is φ = 1051572672.

The previous prime is 1142001209. The next prime is 1142001239. The reversal of 1142001211 is 1121002411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1142001211 - 2¹ = 1142001209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1142001191 and 1142001200.

It is not an unprimeable number, because it can be changed into a prime (1142008211) 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, 102075 + ... + 112708.

It is an arithmetic number, because the mean of its divisors is an integer number (154107520).

Almost surely, 2^1142001211 is an apocalyptic number.

1142001211 is a deficient number, since it is larger than the sum of its proper divisors (90858949).

1142001211 is a wasteful number, since it uses less digits than its factorization.

1142001211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215205.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 1142001211 is about 33793.5084150788. The cubic root of 1142001211 is about 1045.2548422677.

Adding to 1142001211 its reverse (1121002411), we get a palindrome (2263003622).

The spelling of 1142001211 in words is "one billion, one hundred forty-two million, one thousand, two hundred eleven".