1305315105240 has 64 divisors (see below), whose sum is σ = 3919953800160. Its totient is φ = 347727718400.

The previous prime is 1305315105151. The next prime is 1305315105379. The reversal of 1305315105240 is 425015135031.

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 = 1305315105198 and 1305315105207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5449611 + ... + 5684090.

Almost surely, 2^{1305315105240} is an apocalyptic number.

1305315105240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1305315105240 is an abundant number, since it is smaller than the sum of its proper divisors (2614638694920).

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

1305315105240 is a wasteful number, since it uses less digits than its factorization.

1305315105240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11134692 (or 11134688 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

The spelling of 1305315105240 in words is "one trillion, three hundred five billion, three hundred fifteen million, one hundred five thousand, two hundred forty".