1122323020 has 96 divisors (see below), whose sum is σ = 2929425408. Its totient is φ = 351689472.

The previous prime is 1122322933. The next prime is 1122323023. The reversal of 1122323020 is 203232211.

It is a super-2 number, since 2×1122323020² = 2519217922443840800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1122322985 and 1122323003.

It is not an unprimeable number, because it can be changed into a prime (1122323023) by changing a digit.

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, 184467 + ... + 190453.

It is an arithmetic number, because the mean of its divisors is an integer number (30514848).

Almost surely, 2^1122323020 is an apocalyptic number.

1122323020 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 1122323020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1464712704).

1122323020 is an abundant number, since it is smaller than the sum of its proper divisors (1807102388).

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

1122323020 is a wasteful number, since it uses less digits than its factorization.

1122323020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6119 (or 6117 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1122323020 is about 33501.0898330189. The cubic root of 1122323020 is about 1039.2163166616.

Adding to 1122323020 its reverse (203232211), we get a palindrome (1325555231).

It can be divided in two parts, 11223 and 23020, that added together give a palindrome (34243).

The spelling of 1122323020 in words is "one billion, one hundred twenty-two million, three hundred twenty-three thousand, twenty".