1101120002001 has 12 divisors (see below), whose sum is σ = 1627495197328. Its totient is φ = 717008373144.

The previous prime is 1101120001997. The next prime is 1101120002053. The reversal of 1101120002001 is 1002000211011.

It is a happy number.

It is not a de Polignac number, because 1101120002001 - 2² = 1101120001997 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1101120003001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1422635275 + ... + 1422636048.

Almost surely, 2^{1101120002001} is an apocalyptic number.

It is an amenable number.

1101120002001 is a deficient number, since it is larger than the sum of its proper divisors (526375195327).

1101120002001 is a wasteful number, since it uses less digits than its factorization.

1101120002001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2845271372 (or 2845271369 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1101120002001 its reverse (1002000211011), we get a palindrome (2103120213012).

The spelling of 1101120002001 in words is "one trillion, one hundred one billion, one hundred twenty million, two thousand, one".