1320231433432 has 8 divisors (see below), whose sum is σ = 2475433937700. Its totient is φ = 660115716712.

The previous prime is 1320231433393. The next prime is 1320231433441. The reversal of 1320231433432 is 2343341320231.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1320231433432² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1320231433394 and 1320231433403.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 82514464582 + ... + 82514464597.

Almost surely, 2^{1320231433432} is an apocalyptic number.

It is an amenable number.

1320231433432 is a deficient number, since it is larger than the sum of its proper divisors (1155202504268).

1320231433432 is a wasteful number, since it uses less digits than its factorization.

1320231433432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165028929185 (or 165028929181 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 31.

Adding to 1320231433432 its reverse (2343341320231), we get a palindrome (3663572753663).

The spelling of 1320231433432 in words is "one trillion, three hundred twenty billion, two hundred thirty-one million, four hundred thirty-three thousand, four hundred thirty-two".