1305561140232 has 32 divisors (see below), whose sum is σ = 3263956732800. Its totient is φ = 435179862464.

The previous prime is 1305561140179. The next prime is 1305561140239. The reversal of 1305561140232 is 2320411655031.

It is a junction number, because it is equal to n+sod(n) for n = 1305561140193 and 1305561140202.

It is not an unprimeable number, because it can be changed into a prime (1305561140239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1151494 + ... + 1984202.

It is an arithmetic number, because the mean of its divisors is an integer number (101998647900).

Almost surely, 2^{1305561140232} is an apocalyptic number.

1305561140232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1305561140232 is an abundant number, since it is smaller than the sum of its proper divisors (1958395592568).

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

1305561140232 is a wasteful number, since it uses less digits than its factorization.

1305561140232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898045 (or 898041 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

Adding to 1305561140232 its reverse (2320411655031), we get a palindrome (3625972795263).

The spelling of 1305561140232 in words is "one trillion, three hundred five billion, five hundred sixty-one million, one hundred forty thousand, two hundred thirty-two".