10231111111 has 24 divisors (see below), whose sum is σ = 11261527200. Its totient is φ = 9288953856.

The previous prime is 10231111097. The next prime is 10231111151. The reversal of 10231111111 is 11111113201.

It is a de Polignac number, because none of the positive numbers 2^k-10231111111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

10231111111 is a modest number, since divided by 111111 gives 10231 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 10231111091 and 10231111100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10231111151) 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, 5538390 + ... + 5540236.

It is an arithmetic number, because the mean of its divisors is an integer number (469230300).

Almost surely, 2^10231111111 is an apocalyptic number.

10231111111 is a deficient number, since it is larger than the sum of its proper divisors (1030416089).

10231111111 is a wasteful number, since it uses less digits than its factorization.

10231111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2395 (or 2382 counting only the distinct ones).

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

Adding to 10231111111 its reverse (11111113201), we get a palindrome (21342224312).

The spelling of 10231111111 in words is "ten billion, two hundred thirty-one million, one hundred eleven thousand, one hundred eleven".