1328881031207 has 8 divisors (see below), whose sum is σ = 1329660430800. Its totient is φ = 1328101865280.

The previous prime is 1328881031189. The next prime is 1328881031237. The reversal of 1328881031207 is 7021301888231.

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 1328881031207 - 2⁶ = 1328881031143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1328881031237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12042419 + ... + 12152267.

It is an arithmetic number, because the mean of its divisors is an integer number (166207553850).

Almost surely, 2^{1328881031207} is an apocalyptic number.

1328881031207 is a deficient number, since it is larger than the sum of its proper divisors (779399593).

1328881031207 is a wasteful number, since it uses less digits than its factorization.

1328881031207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116833.

The product of its (nonzero) digits is 129024, while the sum is 44.

The spelling of 1328881031207 in words is "one trillion, three hundred twenty-eight billion, eight hundred eighty-one million, thirty-one thousand, two hundred seven".