1111231112101 has 4 divisors (see below), whose sum is σ = 1212252122304. Its totient is φ = 1010210101900.

The previous prime is 1111231112077. The next prime is 1111231112107. The reversal of 1111231112101 is 1012111321111.

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 1111231112101 - 2¹¹ = 1111231110053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111231112107) 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 3 ways as a sum of consecutive naturals, for example, 50510505085 + ... + 50510505106.

It is an arithmetic number, because the mean of its divisors is an integer number (303063030576).

Almost surely, 2^{1111231112101} is an apocalyptic number.

1111231112101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1111231112101 is a deficient number, since it is larger than the sum of its proper divisors (101021010203).

1111231112101 is a wasteful number, since it uses less digits than its factorization.

1111231112101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101021010202.

The product of its (nonzero) digits is 12, while the sum is 16.

Adding to 1111231112101 its reverse (1012111321111), we get a palindrome (2123342433212).

The spelling of 1111231112101 in words is "one trillion, one hundred eleven billion, two hundred thirty-one million, one hundred twelve thousand, one hundred one".