1111001200101 has 24 divisors (see below), whose sum is σ = 1728855096696. Its totient is φ = 683443416960.

The previous prime is 1111001200097. The next prime is 1111001200103. The reversal of 1111001200101 is 1010021001111.

It can be written as a sum of positive squares in 4 ways, for example, as 2002652001 + 1108998548100 = 44751^2 + 1053090^2 .

It is not a de Polignac number, because 1111001200101 - 2² = 1111001200097 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111001200103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1411470 + ... + 2052863.

It is an arithmetic number, because the mean of its divisors is an integer number (72035629029).

Almost surely, 2^{1111001200101} is an apocalyptic number.

It is an amenable number.

1111001200101 is a deficient number, since it is larger than the sum of its proper divisors (617853896595).

1111001200101 is a wasteful number, since it uses less digits than its factorization.

1111001200101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3467093 (or 3467090 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 1111001200101 its reverse (1010021001111), we get a palindrome (2121022201212).

The spelling of 1111001200101 in words is "one trillion, one hundred eleven billion, one million, two hundred thousand, one hundred one".