1142121411 has 16 divisors (see below), whose sum is σ = 1692668320. Its totient is φ = 761127840.

The previous prime is 1142121391. The next prime is 1142121443. The reversal of 1142121411 is 1141212411.

It is not a de Polignac number, because 1142121411 - 2⁷ = 1142121283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1142121811) 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, 84801 + ... + 97341.

It is an arithmetic number, because the mean of its divisors is an integer number (105791770).

Almost surely, 2^1142121411 is an apocalyptic number.

1142121411 is a deficient number, since it is larger than the sum of its proper divisors (550546909).

1142121411 is a wasteful number, since it uses less digits than its factorization.

1142121411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15923 (or 15917 counting only the distinct ones).

The product of its digits is 64, while the sum is 18.

The square root of 1142121411 is about 33795.2868163595. The cubic root of 1142121411 is about 1045.2915133392.

Adding to 1142121411 its reverse (1141212411), we get a palindrome (2283333822).

The spelling of 1142121411 in words is "one billion, one hundred forty-two million, one hundred twenty-one thousand, four hundred eleven".