1121440242 has 16 divisors (see below), whose sum is σ = 2415409920. Its totient is φ = 345058512.

The previous prime is 1121440231. The next prime is 1121440253. The reversal of 1121440242 is 2420441211.

It is an interprime number because it is at equal distance from previous prime (1121440231) and next prime (1121440253).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7188642 + ... + 7188797.

It is an arithmetic number, because the mean of its divisors is an integer number (150963120).

Almost surely, 2^1121440242 is an apocalyptic number.

1121440242 is an abundant number, since it is smaller than the sum of its proper divisors (1293969678).

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

1121440242 is a wasteful number, since it uses less digits than its factorization.

1121440242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14377457.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 1121440242 is about 33487.9118787660. The cubic root of 1121440242 is about 1038.9437754173.

Adding to 1121440242 its reverse (2420441211), we get a palindrome (3541881453).

The spelling of 1121440242 in words is "one billion, one hundred twenty-one million, four hundred forty thousand, two hundred forty-two".