1309980178911 has 64 divisors (see below), whose sum is σ = 1914383116800. Its totient is φ = 793500364800.

The previous prime is 1309980178847. The next prime is 1309980178921. The reversal of 1309980178911 is 1198710899031.

It is not a de Polignac number, because 1309980178911 - 2⁶ = 1309980178847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1309980178921) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 195779076 + ... + 195785766.

It is an arithmetic number, because the mean of its divisors is an integer number (29912236200).

Almost surely, 2^{1309980178911} is an apocalyptic number.

1309980178911 is a deficient number, since it is larger than the sum of its proper divisors (604402937889).

1309980178911 is a wasteful number, since it uses less digits than its factorization.

1309980178911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7720.

The product of its (nonzero) digits is 979776, while the sum is 57.

The spelling of 1309980178911 in words is "one trillion, three hundred nine billion, nine hundred eighty million, one hundred seventy-eight thousand, nine hundred eleven".