1320204423432 has 16 divisors (see below), whose sum is σ = 3300511058640. Its totient is φ = 440068141136.

The previous prime is 1320204423407. The next prime is 1320204423451. The reversal of 1320204423432 is 2343244020231.

It is a self number, because there is not a number n which added to its sum of digits gives 1320204423432.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27504258798 + ... + 27504258845.

It is an arithmetic number, because the mean of its divisors is an integer number (206281941165).

Almost surely, 2^{1320204423432} is an apocalyptic number.

1320204423432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1320204423432 is an abundant number, since it is smaller than the sum of its proper divisors (1980306635208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1320204423432 is a wasteful number, since it uses less digits than its factorization.

1320204423432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55008517652 (or 55008517648 counting only the distinct ones).

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

Adding to 1320204423432 its reverse (2343244020231), we get a palindrome (3663448443663).

The spelling of 1320204423432 in words is "one trillion, three hundred twenty billion, two hundred four million, four hundred twenty-three thousand, four hundred thirty-two".