1361303320 has 128 divisors (see below), whose sum is σ = 3433026240. Its totient is φ = 482549760.

The previous prime is 1361303309. The next prime is 1361303329. The reversal of 1361303320 is 233031631.

It is a junction number, because it is equal to n+sod(n) for n = 1361303291 and 1361303300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361303329) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1427964 + ... + 1428916.

Almost surely, 2^1361303320 is an apocalyptic number.

1361303320 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 1361303320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1716513120).

1361303320 is an abundant number, since it is smaller than the sum of its proper divisors (2071722920).

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

1361303320 is a wasteful number, since it uses less digits than its factorization.

1361303320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1085 (or 1081 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 22.

The square root of 1361303320 is about 36895.8442104257. The cubic root of 1361303320 is about 1108.2854573449.

Adding to 1361303320 its reverse (233031631), we get a palindrome (1594334951).

The spelling of 1361303320 in words is "one billion, three hundred sixty-one million, three hundred three thousand, three hundred twenty".