1304323053240 has 32 divisors (see below), whose sum is σ = 3912969160080. Its totient is φ = 347819480832.

The previous prime is 1304323053161. The next prime is 1304323053349. The reversal of 1304323053240 is 423503234031.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1304323053198 and 1304323053207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5434679269 + ... + 5434679508.

Almost surely, 2^{1304323053240} is an apocalyptic number.

1304323053240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1304323053240 is an abundant number, since it is smaller than the sum of its proper divisors (2608646106840).

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

1304323053240 is a wasteful number, since it uses less digits than its factorization.

1304323053240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10869358791 (or 10869358787 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 30.

Adding to 1304323053240 its reverse (423503234031), we get a palindrome (1727826287271).

The spelling of 1304323053240 in words is "one trillion, three hundred four billion, three hundred twenty-three million, fifty-three thousand, two hundred forty".