1320434404023 has 16 divisors (see below), whose sum is σ = 2013820644096. Its totient is φ = 753885148800.

The previous prime is 1320434404013. The next prime is 1320434404027. The reversal of 1320434404023 is 3204044340231.

It is a happy number.

It is not a de Polignac number, because 1320434404023 - 2⁸ = 1320434403767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320434404027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27008178 + ... + 27057023.

It is an arithmetic number, because the mean of its divisors is an integer number (125863790256).

Almost surely, 2^{1320434404023} is an apocalyptic number.

1320434404023 is a deficient number, since it is larger than the sum of its proper divisors (693386240073).

1320434404023 is a wasteful number, since it uses less digits than its factorization.

1320434404023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54066374.

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 1320434404023 its reverse (3204044340231), we get a palindrome (4524478744254).

The spelling of 1320434404023 in words is "one trillion, three hundred twenty billion, four hundred thirty-four million, four hundred four thousand, twenty-three".