1101731721889 has 8 divisors (see below), whose sum is σ = 1107426686400. Its totient is φ = 1096038344016.

The previous prime is 1101731721869. The next prime is 1101731721901. The reversal of 1101731721889 is 9881271371011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1101731721889 - 2¹³ = 1101731713697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1101731721829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1008519 + ... + 1794595.

It is an arithmetic number, because the mean of its divisors is an integer number (138428335800).

Almost surely, 2^{1101731721889} is an apocalyptic number.

It is an amenable number.

1101731721889 is a deficient number, since it is larger than the sum of its proper divisors (5694964511).

1101731721889 is an equidigital number, since it uses as much as digits as its factorization.

1101731721889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793319.

The product of its (nonzero) digits is 169344, while the sum is 49.

The spelling of 1101731721889 in words is "one trillion, one hundred one billion, seven hundred thirty-one million, seven hundred twenty-one thousand, eight hundred eighty-nine".