1305320520090 has 32 divisors (see below), whose sum is σ = 3141745689600. Its totient is φ = 347088089664.

The previous prime is 1305320520089. The next prime is 1305320520107. The reversal of 1305320520090 is 900250235031.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 62325754 + ... + 62346693.

It is an arithmetic number, because the mean of its divisors is an integer number (98179552800).

Almost surely, 2^{1305320520090} is an apocalyptic number.

1305320520090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1305320520090 is an abundant number, since it is smaller than the sum of its proper divisors (1836425169510).

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

1305320520090 is a wasteful number, since it uses less digits than its factorization.

1305320520090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124672806.

The product of its (nonzero) digits is 8100, while the sum is 30.

The spelling of 1305320520090 in words is "one trillion, three hundred five billion, three hundred twenty million, five hundred twenty thousand, ninety".