1323215551343 has 12 divisors (see below), whose sum is σ = 1572000761952. Its totient is φ = 1110053165760.

The previous prime is 1323215551331. The next prime is 1323215551391. The reversal of 1323215551343 is 3431555123231.

It is not a de Polignac number, because 1323215551343 - 2⁸ = 1323215551087 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1323215551297 and 1323215551306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323215541343) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 287278538 + ... + 287283143.

It is an arithmetic number, because the mean of its divisors is an integer number (131000063496).

Almost surely, 2^{1323215551343} is an apocalyptic number.

1323215551343 is a deficient number, since it is larger than the sum of its proper divisors (248785210609).

1323215551343 is an equidigital number, since it uses as much as digits as its factorization.

1323215551343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574561742 (or 574561735 counting only the distinct ones).

The product of its digits is 162000, while the sum is 38.

The spelling of 1323215551343 in words is "one trillion, three hundred twenty-three billion, two hundred fifteen million, five hundred fifty-one thousand, three hundred forty-three".