1114123220 has 96 divisors (see below), whose sum is σ = 2954423808. Its totient is φ = 343867392.

The previous prime is 1114123211. The next prime is 1114123261. The reversal of 1114123220 is 223214111.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44564 + ... + 64916.

It is an arithmetic number, because the mean of its divisors is an integer number (30775248).

Almost surely, 2^1114123220 is an apocalyptic number.

1114123220 is a gapful number since it is divisible by the number (10) 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 1114123220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1477211904).

1114123220 is an abundant number, since it is smaller than the sum of its proper divisors (1840300588).

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

1114123220 is a wasteful number, since it uses less digits than its factorization.

1114123220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20409 (or 20407 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1114123220 is about 33378.4843874014. The cubic root of 1114123220 is about 1036.6792564489.

Adding to 1114123220 its reverse (223214111), we get a palindrome (1337337331).

The spelling of 1114123220 in words is "one billion, one hundred fourteen million, one hundred twenty-three thousand, two hundred twenty".