1350123320 has 128 divisors (see below), whose sum is σ = 3790765440. Its totient is φ = 421355520.

The previous prime is 1350123319. The next prime is 1350123349. The reversal of 1350123320 is 233210531.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1350123292 and 1350123301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 263180 + ... + 268260.

It is an arithmetic number, because the mean of its divisors is an integer number (29615355).

Almost surely, 2^1350123320 is an apocalyptic number.

1350123320 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 1350123320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1895382720).

1350123320 is an abundant number, since it is smaller than the sum of its proper divisors (2440642120).

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

1350123320 is a wasteful number, since it uses less digits than its factorization.

1350123320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5185 (or 5181 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 1350123320 is about 36744.0242760643. The cubic root of 1350123320 is about 1105.2431015130.

Adding to 1350123320 its reverse (233210531), we get a palindrome (1583333851).

The spelling of 1350123320 in words is "one billion, three hundred fifty million, one hundred twenty-three thousand, three hundred twenty".