1320205352123 has 32 divisors (see below), whose sum is σ = 1714417228800. Its totient is φ = 990075816576.

The previous prime is 1320205352093. The next prime is 1320205352131. The reversal of 1320205352123 is 3212535020231.

It is not a de Polignac number, because 1320205352123 - 2¹⁰ = 1320205351099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1320205352143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7352336 + ... + 7529757.

It is an arithmetic number, because the mean of its divisors is an integer number (53575538400).

Almost surely, 2^{1320205352123} is an apocalyptic number.

1320205352123 is a deficient number, since it is larger than the sum of its proper divisors (394211876677).

1320205352123 is a wasteful number, since it uses less digits than its factorization.

1320205352123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14882171.

The product of its (nonzero) digits is 10800, while the sum is 29.

The spelling of 1320205352123 in words is "one trillion, three hundred twenty billion, two hundred five million, three hundred fifty-two thousand, one hundred twenty-three".