1321230123343 has 8 divisors (see below), whose sum is σ = 1440006141168. Its totient is φ = 1204903095744.

The previous prime is 1321230123337. The next prime is 1321230123347. The reversal of 1321230123343 is 3433210321231.

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

It is not a de Polignac number, because 1321230123343 - 2²¹ = 1321228026191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321230123347) 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, 612246430 + ... + 612248587.

It is an arithmetic number, because the mean of its divisors is an integer number (180000767646).

Almost surely, 2^{1321230123343} is an apocalyptic number.

1321230123343 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1321230123343 is a deficient number, since it is larger than the sum of its proper divisors (118776017825).

1321230123343 is a wasteful number, since it uses less digits than its factorization.

1321230123343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224495113.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 1321230123343 its reverse (3433210321231), we get a palindrome (4754440444574).

The spelling of 1321230123343 in words is "one trillion, three hundred twenty-one billion, two hundred thirty million, one hundred twenty-three thousand, three hundred forty-three".