1711121112 has 80 divisors (see below), whose sum is σ = 4883250240. Its totient is φ = 559600704.

The previous prime is 1711121099. The next prime is 1711121117. The reversal of 1711121112 is 2111211171.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1711121117) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9433 + ... + 59255.

It is an arithmetic number, because the mean of its divisors is an integer number (61040628).

Almost surely, 2^1711121112 is an apocalyptic number.

1711121112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1711121112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2441625120).

1711121112 is an abundant number, since it is smaller than the sum of its proper divisors (3172129128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1711121112 is a wasteful number, since it uses less digits than its factorization.

1711121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49894 (or 49881 counting only the distinct ones).

The product of its digits is 28, while the sum is 18.

The square root of 1711121112 is about 41365.6997039818. The cubic root of 1711121112 is about 1196.0800589951.

Adding to 1711121112 its reverse (2111211171), we get a palindrome (3822332283).

The spelling of 1711121112 in words is "one billion, seven hundred eleven million, one hundred twenty-one thousand, one hundred twelve".