1305230985912 has 64 divisors (see below), whose sum is σ = 3849529190400. Its totient is φ = 360893358720.

The previous prime is 1305230985911. The next prime is 1305230985937. The reversal of 1305230985912 is 2195890325031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1305230985911) 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, 125304987 + ... + 125315402.

It is an arithmetic number, because the mean of its divisors is an integer number (60148893600).

Almost surely, 2^{1305230985912} is an apocalyptic number.

1305230985912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1305230985912 is an abundant number, since it is smaller than the sum of its proper divisors (2544298204488).

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

1305230985912 is a wasteful number, since it uses less digits than its factorization.

1305230985912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250620436 (or 250620432 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 48.

The spelling of 1305230985912 in words is "one trillion, three hundred five billion, two hundred thirty million, nine hundred eighty-five thousand, nine hundred twelve".