1320123432145 has 16 divisors (see below), whose sum is σ = 1810905435648. Its totient is φ = 905002274880.

The previous prime is 1320123432113. The next prime is 1320123432223. The reversal of 1320123432145 is 5412343210231.

It is not a de Polignac number, because 1320123432145 - 2⁵ = 1320123432113 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4549369 + ... + 4830838.

It is an arithmetic number, because the mean of its divisors is an integer number (113181589728).

Almost surely, 2^{1320123432145} is an apocalyptic number.

It is an amenable number.

1320123432145 is a deficient number, since it is larger than the sum of its proper divisors (490782003503).

1320123432145 is an equidigital number, since it uses as much as digits as its factorization.

1320123432145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9384240.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 1320123432145 its reverse (5412343210231), we get a palindrome (6732466642376).

The spelling of 1320123432145 in words is "one trillion, three hundred twenty billion, one hundred twenty-three million, four hundred thirty-two thousand, one hundred forty-five".