1120040001 has 32 divisors (see below), whose sum is σ = 1720944000. Its totient is φ = 719095104.

The previous prime is 1120039997. The next prime is 1120040021. The reversal of 1120040001 is 1000400211.

It is a happy number.

It is not a de Polignac number, because 1120040001 - 2² = 1120039997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1120040021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 345255 + ... + 348483.

It is an arithmetic number, because the mean of its divisors is an integer number (53779500).

Almost surely, 2^1120040001 is an apocalyptic number.

It is an amenable number.

1120040001 is a deficient number, since it is larger than the sum of its proper divisors (600903999).

1120040001 is a wasteful number, since it uses less digits than its factorization.

1120040001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3710 (or 3704 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1120040001 is about 33466.9986852720. The cubic root of 1120040001 is about 1038.5111836133.

Adding to 1120040001 its reverse (1000400211), we get a palindrome (2120440212).

The spelling of 1120040001 in words is "one billion, one hundred twenty million, forty thousand, one".