1121042329 has 16 divisors (see below), whose sum is σ = 1243123776. Its totient is φ = 1002456000.

The previous prime is 1121042327. The next prime is 1121042341. The reversal of 1121042329 is 9232401211.

It is a cyclic number.

It is not a de Polignac number, because 1121042329 - 2¹ = 1121042327 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121042327) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 171214 + ... + 177640.

It is an arithmetic number, because the mean of its divisors is an integer number (77695236).

Almost surely, 2^1121042329 is an apocalyptic number.

It is an amenable number.

1121042329 is a deficient number, since it is larger than the sum of its proper divisors (122081447).

1121042329 is a wasteful number, since it uses less digits than its factorization.

1121042329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6696.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1121042329 is about 33481.9702078596. The cubic root of 1121042329 is about 1038.8208804338.

It can be divided in two parts, 112 and 1042329, that added together give a square (1042441 = 1021²).

The spelling of 1121042329 in words is "one billion, one hundred twenty-one million, forty-two thousand, three hundred twenty-nine".