1320323442231 has 8 divisors (see below), whose sum is σ = 1763102626560. Its totient is φ = 878879943032.

The previous prime is 1320323442223. The next prime is 1320323442239. The reversal of 1320323442231 is 1322443230231.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1320323442223) and next prime (1320323442239).

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 1320323442231 - 2³ = 1320323442223 is a prime.

It is a super-2 number, since 2×1320323442231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320323442239) 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, 333918975 + ... + 333922928.

It is an arithmetic number, because the mean of its divisors is an integer number (220387828320).

Almost surely, 2^{1320323442231} is an apocalyptic number.

1320323442231 is a deficient number, since it is larger than the sum of its proper divisors (442779184329).

1320323442231 is an equidigital number, since it uses as much as digits as its factorization.

1320323442231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667842565.

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 1320323442231 its reverse (1322443230231), we get a palindrome (2642766672462).

The spelling of 1320323442231 in words is "one trillion, three hundred twenty billion, three hundred twenty-three million, four hundred forty-two thousand, two hundred thirty-one".