11111010231 has 16 divisors (see below), whose sum is σ = 15178595328. Its totient is φ = 7226397600.

The previous prime is 11111010203. The next prime is 11111010293. The reversal of 11111010231 is 13201011111.

It is not a de Polignac number, because 11111010231 - 2⁶ = 11111010167 is a prime.

It is a super-2 number, since 2×11111010231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111010431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82840 + ... + 170541.

It is an arithmetic number, because the mean of its divisors is an integer number (948662208).

Almost surely, 2^11111010231 is an apocalyptic number.

11111010231 is a deficient number, since it is larger than the sum of its proper divisors (4067585097).

11111010231 is a wasteful number, since it uses less digits than its factorization.

11111010231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253742.

The product of its (nonzero) digits is 6, while the sum is 12.

Adding to 11111010231 its reverse (13201011111), we get a palindrome (24312021342).

The spelling of 11111010231 in words is "eleven billion, one hundred eleven million, ten thousand, two hundred thirty-one".