1305445403112 has 64 divisors (see below), whose sum is σ = 3381607224000. Its totient is φ = 419464464384.

The previous prime is 1305445403077. The next prime is 1305445403117. The reversal of 1305445403112 is 2113045445031.

It is not an unprimeable number, because it can be changed into a prime (1305445403117) 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, 1084233 + ... + 1945880.

It is an arithmetic number, because the mean of its divisors is an integer number (52837612875).

Almost surely, 2^{1305445403112} is an apocalyptic number.

1305445403112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1305445403112 is an abundant number, since it is smaller than the sum of its proper divisors (2076161820888).

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

1305445403112 is a wasteful number, since it uses less digits than its factorization.

1305445403112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3030770 (or 3030766 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The spelling of 1305445403112 in words is "one trillion, three hundred five billion, four hundred forty-five million, four hundred three thousand, one hundred twelve".