1123231330320 has 240 divisors, whose sum is σ = 3925060047936. Its totient is φ = 263514086400.

The previous prime is 1123231330297. The next prime is 1123231330373. The reversal of 1123231330320 is 230331323211.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2315674 + ... + 2758406.

Almost surely, 2^{1123231330320} is an apocalyptic number.

1123231330320 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 1123231330320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1962530023968).

1123231330320 is an abundant number, since it is smaller than the sum of its proper divisors (2801828717616).

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

1123231330320 is a wasteful number, since it uses less digits than its factorization.

1123231330320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442822 (or 442785 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 1123231330320 its reverse (230331323211), we get a palindrome (1353562653531).

The spelling of 1123231330320 in words is "one trillion, one hundred twenty-three billion, two hundred thirty-one million, three hundred thirty thousand, three hundred twenty".