1331223130247 has 4 divisors (see below), whose sum is σ = 1339390143480. Its totient is φ = 1323056117016.

The previous prime is 1331223130241. The next prime is 1331223130273. The reversal of 1331223130247 is 7420313221331.

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 1331223130247 - 2⁴ = 1331223130231 is a prime.

It is a super-3 number, since 3×1331223130247³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331223130241) 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, 4083506372 + ... + 4083506697.

It is an arithmetic number, because the mean of its divisors is an integer number (334847535870).

Almost surely, 2^{1331223130247} is an apocalyptic number.

1331223130247 is a deficient number, since it is larger than the sum of its proper divisors (8167013233).

1331223130247 is an equidigital number, since it uses as much as digits as its factorization.

1331223130247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8167013232.

The product of its (nonzero) digits is 18144, while the sum is 32.

Adding to 1331223130247 its reverse (7420313221331), we get a palindrome (8751536351578).

The spelling of 1331223130247 in words is "one trillion, three hundred thirty-one billion, two hundred twenty-three million, one hundred thirty thousand, two hundred forty-seven".