1303143340 has 48 divisors (see below), whose sum is σ = 2782563840. Its totient is φ = 512568320.

The previous prime is 1303143323. The next prime is 1303143343. The reversal of 1303143340 is 433413031.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1303143343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 338064 + ... + 341896.

It is an arithmetic number, because the mean of its divisors is an integer number (57970080).

Almost surely, 2^1303143340 is an apocalyptic number.

1303143340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1303143340 is an abundant number, since it is smaller than the sum of its proper divisors (1479420500).

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

1303143340 is a wasteful number, since it uses less digits than its factorization.

1303143340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4122 (or 4120 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 1303143340 is about 36099.0767194952. The cubic root of 1303143340 is about 1092.2718209040.

Adding to 1303143340 its reverse (433413031), we get a palindrome (1736556371).

The spelling of 1303143340 in words is "one billion, three hundred three million, one hundred forty-three thousand, three hundred forty".