1343221330231 has 4 divisors (see below), whose sum is σ = 1465332360264. Its totient is φ = 1221110300200.

The previous prime is 1343221330183. The next prime is 1343221330273. The reversal of 1343221330231 is 1320331223431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1343221330231 - 2²¹ = 1343219233079 is a prime.

It is a super-2 number, since 2×1343221330231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1343221330231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1343221339231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61055515000 + ... + 61055515021.

It is an arithmetic number, because the mean of its divisors is an integer number (366333090066).

Almost surely, 2^{1343221330231} is an apocalyptic number.

1343221330231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1343221330231 is a deficient number, since it is larger than the sum of its proper divisors (122111030033).

1343221330231 is a wasteful number, since it uses less digits than its factorization.

1343221330231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122111030032.

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

Adding to 1343221330231 its reverse (1320331223431), we get a palindrome (2663552553662).

The spelling of 1343221330231 in words is "one trillion, three hundred forty-three billion, two hundred twenty-one million, three hundred thirty thousand, two hundred thirty-one".