101111221012103 has 8 divisors (see below), whose sum is σ = 104481481942656. Its totient is φ = 97849568692560.

The previous prime is 101111221012093. The next prime is 101111221012237. The reversal of 101111221012103 is 301210122111101.

It is a de Polignac number, because none of the positive numbers 2^k-101111221012103 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 (101111221012603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1696979726 + ... + 1697039307.

It is an arithmetic number, because the mean of its divisors is an integer number (13060185242832).

Almost surely, 2^{101111221012103} is an apocalyptic number.

101111221012103 is a deficient number, since it is larger than the sum of its proper divisors (3370260930553).

101111221012103 is an frugal number, since it uses more digits than its factorization.

101111221012103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3394019126 (or 3394019064 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 17.

Adding to 101111221012103 its reverse (301210122111101), we get a palindrome (402321343123204).

The spelling of 101111221012103 in words is "one hundred one trillion, one hundred eleven billion, two hundred twenty-one million, twelve thousand, one hundred three".