111111111092 has 6 divisors (see below), whose sum is σ = 194444444418. Its totient is φ = 55555555544.

The previous prime is 111111111091. The next prime is 111111111101. The reversal of 111111111092 is 290111111111.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 92887191076 + 18223920016 = 304774^2 + 134996^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111111111091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13888888883 + ... + 13888888890.

It is an arithmetic number, because the mean of its divisors is an integer number (32407407403).

Almost surely, 2^111111111092 is an apocalyptic number.

It is an amenable number.

111111111092 is a deficient number, since it is larger than the sum of its proper divisors (83333333326).

111111111092 is a wasteful number, since it uses less digits than its factorization.

111111111092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27777777777 (or 27777777775 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 20.

It can be divided in two parts, 11111111109 and 2, that added together give a palindrome (11111111111).

The spelling of 111111111092 in words is "one hundred eleven billion, one hundred eleven million, one hundred eleven thousand, ninety-two".