1320243431233 has 8 divisors (see below), whose sum is σ = 1327658018400. Its totient is φ = 1312829276928.

The previous prime is 1320243431191. The next prime is 1320243431261. The reversal of 1320243431233 is 3321343420231.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1320243431233 - 2²¹ = 1320241334081 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1320243431195 and 1320243431204.

It is not an unprimeable number, because it can be changed into a prime (1320243431033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7508598 + ... + 7682416.

It is an arithmetic number, because the mean of its divisors is an integer number (165957252300).

Almost surely, 2^{1320243431233} is an apocalyptic number.

It is an amenable number.

1320243431233 is a deficient number, since it is larger than the sum of its proper divisors (7414587167).

1320243431233 is a wasteful number, since it uses less digits than its factorization.

1320243431233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216431.

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

Adding to 1320243431233 its reverse (3321343420231), we get a palindrome (4641586851464).

The spelling of 1320243431233 in words is "one trillion, three hundred twenty billion, two hundred forty-three million, four hundred thirty-one thousand, two hundred thirty-three".