10111321111 has 8 divisors (see below), whose sum is σ = 10614127104. Its totient is φ = 9613780440.

The previous prime is 10111321109. The next prime is 10111321123. The reversal of 10111321111 is 11112311101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10111321111 - 2¹ = 10111321109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10111321091 and 10111321100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10111321151) 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, 1312395 + ... + 1320076.

It is an arithmetic number, because the mean of its divisors is an integer number (1326765888).

Almost surely, 2^10111321111 is an apocalyptic number.

10111321111 is a deficient number, since it is larger than the sum of its proper divisors (502805993).

10111321111 is a wasteful number, since it uses less digits than its factorization.

10111321111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2632661.

The product of its (nonzero) digits is 6, while the sum is 13.

Adding to 10111321111 its reverse (11112311101), we get a palindrome (21223632212).

The spelling of 10111321111 in words is "ten billion, one hundred eleven million, three hundred twenty-one thousand, one hundred eleven".