1309212960240 has 40 divisors (see below), whose sum is σ = 4058560177488. Its totient is φ = 349123456000.

The previous prime is 1309212960229. The next prime is 1309212960281. The reversal of 1309212960240 is 420692129031.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2727526761 + ... + 2727527240.

Almost surely, 2^{1309212960240} is an apocalyptic number.

1309212960240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1309212960240 is an abundant number, since it is smaller than the sum of its proper divisors (2749347217248).

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

1309212960240 is a wasteful number, since it uses less digits than its factorization.

1309212960240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5455054017 (or 5455054011 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 39.

The spelling of 1309212960240 in words is "one trillion, three hundred nine billion, two hundred twelve million, nine hundred sixty thousand, two hundred forty".