1343311320 has 256 divisors, whose sum is σ = 4688409600. Its totient is φ = 305141760.

The previous prime is 1343311309. The next prime is 1343311337. The reversal of 1343311320 is 231133431.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1039875 + ... + 1041165.

It is an arithmetic number, because the mean of its divisors is an integer number (18314100).

Almost surely, 2^1343311320 is an apocalyptic number.

1343311320 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 1343311320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2344204800).

1343311320 is an abundant number, since it is smaller than the sum of its proper divisors (3345098280).

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

1343311320 is a wasteful number, since it uses less digits than its factorization.

1343311320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1370 (or 1366 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 1343311320 is about 36651.2117125751. The cubic root of 1343311320 is about 1103.3811447068.

Adding to 1343311320 its reverse (231133431), we get a palindrome (1574444751).

It can be divided in two parts, 13433 and 11320, that added together give a triangular number (24753 = T₂₂₂).

The spelling of 1343311320 in words is "one billion, three hundred forty-three million, three hundred eleven thousand, three hundred twenty".