111023101211 has 12 divisors (see below), whose sum is σ = 127339471056. Its totient is φ = 96541824720.

The previous prime is 111023101207. The next prime is 111023101243. The reversal of 111023101211 is 112101320111.

It is not a de Polignac number, because 111023101211 - 2² = 111023101207 is a prime.

It is a super-2 number, since 2×111023101211² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111023101291) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19943876 + ... + 19949441.

It is an arithmetic number, because the mean of its divisors is an integer number (10611622588).

Almost surely, 2^111023101211 is an apocalyptic number.

111023101211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111023101211 is a deficient number, since it is larger than the sum of its proper divisors (16316369845).

111023101211 is a wasteful number, since it uses less digits than its factorization.

111023101211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39893362 (or 39893351 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 111023101211 its reverse (112101320111), we get a palindrome (223124421322).

The spelling of 111023101211 in words is "one hundred eleven billion, twenty-three million, one hundred one thousand, two hundred eleven".