1305604023612 has 24 divisors (see below), whose sum is σ = 3481610729856. Its totient is φ = 373029721008.

The previous prime is 1305604023601. The next prime is 1305604023631. The reversal of 1305604023612 is 2163204065031.

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, 7771452438 + ... + 7771452605.

It is an arithmetic number, because the mean of its divisors is an integer number (145067113744).

Almost surely, 2^{1305604023612} is an apocalyptic number.

1305604023612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1305604023612 is an abundant number, since it is smaller than the sum of its proper divisors (2176006706244).

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

1305604023612 is a wasteful number, since it uses less digits than its factorization.

1305604023612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15542905057 (or 15542905055 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

Adding to 1305604023612 its reverse (2163204065031), we get a palindrome (3468808088643).

The spelling of 1305604023612 in words is "one trillion, three hundred five billion, six hundred four million, twenty-three thousand, six hundred twelve".