1312231330231 has 8 divisors (see below), whose sum is σ = 1388042195040. Its totient is φ = 1237983576192.

The previous prime is 1312231330219. The next prime is 1312231330247. The reversal of 1312231330231 is 1320331322131.

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 1312231330231 - 2¹¹ = 1312231328183 is a prime.

It is a super-2 number, since 2×1312231330231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1312231330196 and 1312231330205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312231330331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 390775966 + ... + 390779323.

It is an arithmetic number, because the mean of its divisors is an integer number (173505274380).

Almost surely, 2^{1312231330231} is an apocalyptic number.

1312231330231 is a deficient number, since it is larger than the sum of its proper divisors (75810864809).

1312231330231 is an equidigital number, since it uses as much as digits as its factorization.

1312231330231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781555385.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 1312231330231 its reverse (1320331322131), we get a palindrome (2632562652362).

The spelling of 1312231330231 in words is "one trillion, three hundred twelve billion, two hundred thirty-one million, three hundred thirty thousand, two hundred thirty-one".