1223011031120 has 120 divisors (see below), whose sum is σ = 3021739167744. Its totient is φ = 460254742528.

The previous prime is 1223011031117. The next prime is 1223011031167. The reversal of 1223011031120 is 211301103221.

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 polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73212689 + ... + 73229391.

Almost surely, 2^{1223011031120} is an apocalyptic number.

1223011031120 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 1223011031120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1510869583872).

1223011031120 is an abundant number, since it is smaller than the sum of its proper divisors (1798728136624).

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

1223011031120 is a wasteful number, since it uses less digits than its factorization.

1223011031120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19917 (or 19894 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1223011031120 its reverse (211301103221), we get a palindrome (1434312134341).

The spelling of 1223011031120 in words is "one trillion, two hundred twenty-three billion, eleven million, thirty-one thousand, one hundred twenty".