1311231623363 has 8 divisors (see below), whose sum is σ = 1390671887136. Its totient is φ = 1233660542400.

The previous prime is 1311231623341. The next prime is 1311231623381. The reversal of 1311231623363 is 3633261321131.

It is a happy number.

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 1311231623363 - 2¹⁶ = 1311231557827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1311231623063) 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, 467294258 + ... + 467297063.

It is an arithmetic number, because the mean of its divisors is an integer number (173833985892).

Almost surely, 2^{1311231623363} is an apocalyptic number.

1311231623363 is a deficient number, since it is larger than the sum of its proper divisors (79440263773).

1311231623363 is an equidigital number, since it uses as much as digits as its factorization.

1311231623363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934591405.

The product of its digits is 34992, while the sum is 35.

Adding to 1311231623363 its reverse (3633261321131), we get a palindrome (4944492944494).

The spelling of 1311231623363 in words is "one trillion, three hundred eleven billion, two hundred thirty-one million, six hundred twenty-three thousand, three hundred sixty-three".