1120011001001 has 4 divisors (see below), whose sum is σ = 1135785803904. Its totient is φ = 1104236198100.

The previous prime is 1120011000827. The next prime is 1120011001009. The reversal of 1120011001001 is 1001001100211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1120011001001 - 2²² = 1120006806697 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1120011001001.

It is not an unprimeable number, because it can be changed into a prime (1120011001009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7887401345 + ... + 7887401486.

It is an arithmetic number, because the mean of its divisors is an integer number (283946450976).

Almost surely, 2^{1120011001001} is an apocalyptic number.

It is an amenable number.

1120011001001 is a deficient number, since it is larger than the sum of its proper divisors (15774802903).

1120011001001 is an equidigital number, since it uses as much as digits as its factorization.

1120011001001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15774802902.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 1120011001001 its reverse (1001001100211), we get a palindrome (2121012101212).

The spelling of 1120011001001 in words is "one trillion, one hundred twenty billion, eleven million, one thousand, one".