1121440002 has 24 divisors (see below), whose sum is σ = 2367143856. Its totient is φ = 354138264.

The previous prime is 1121439971. The next prime is 1121440027. The reversal of 1121440002 is 2000441211.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 256708 + ... + 261039.

It is an arithmetic number, because the mean of its divisors is an integer number (98630994).

Almost surely, 2^1121440002 is an apocalyptic number.

1121440002 is an abundant number, since it is smaller than the sum of its proper divisors (1245703854).

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

1121440002 is a wasteful number, since it uses less digits than its factorization.

1121440002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517790 (or 517771 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1121440002 is about 33487.9082953833. The cubic root of 1121440002 is about 1038.9437013023.

Adding to 1121440002 its reverse (2000441211), we get a palindrome (3121881213).

The spelling of 1121440002 in words is "one billion, one hundred twenty-one million, four hundred forty thousand, two".