101223102111 has 4 divisors (see below), whose sum is σ = 134964136152. Its totient is φ = 67482068072.

The previous prime is 101223102107. The next prime is 101223102131. The reversal of 101223102111 is 111201322101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 101223102111 - 2² = 101223102107 is a prime.

It is a super-2 number, since 2×101223102111² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101223102131) 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, 16870517016 + ... + 16870517021.

It is an arithmetic number, because the mean of its divisors is an integer number (33741034038).

Almost surely, 2^101223102111 is an apocalyptic number.

101223102111 is a deficient number, since it is larger than the sum of its proper divisors (33741034041).

101223102111 is an equidigital number, since it uses as much as digits as its factorization.

101223102111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33741034040.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 101223102111 its reverse (111201322101), we get a palindrome (212424424212).

The spelling of 101223102111 in words is "one hundred one billion, two hundred twenty-three million, one hundred two thousand, one hundred eleven".