1305211313140 has 48 divisors (see below), whose sum is σ = 3240524649600. Its totient is φ = 432069950592.

The previous prime is 1305211313129. The next prime is 1305211313171. The reversal of 1305211313140 is 413131125031.

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, 160736250 + ... + 160744369.

It is an arithmetic number, because the mean of its divisors is an integer number (67510930200).

Almost surely, 2^{1305211313140} is an apocalyptic number.

1305211313140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1305211313140 is an abundant number, since it is smaller than the sum of its proper divisors (1935313336460).

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

1305211313140 is a wasteful number, since it uses less digits than its factorization.

1305211313140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321480664 (or 321480662 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

Adding to 1305211313140 its reverse (413131125031), we get a palindrome (1718342438171).

The spelling of 1305211313140 in words is "one trillion, three hundred five billion, two hundred eleven million, three hundred thirteen thousand, one hundred forty".