1231143334231 has 8 divisors (see below), whose sum is σ = 1248503112864. Its totient is φ = 1213784103840.

The previous prime is 1231143334217. The next prime is 1231143334247. The reversal of 1231143334231 is 1324333411321.

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 1231143334231 - 2⁵ = 1231143334199 is a prime.

It is a super-2 number, since 2×1231143334231² (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 = 1231143334193 and 1231143334202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231143332231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6950985 + ... + 7125901.

It is an arithmetic number, because the mean of its divisors is an integer number (156062889108).

Almost surely, 2^{1231143334231} is an apocalyptic number.

1231143334231 is a deficient number, since it is larger than the sum of its proper divisors (17359778633).

1231143334231 is an equidigital number, since it uses as much as digits as its factorization.

1231143334231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274121.

The product of its digits is 15552, while the sum is 31.

Adding to 1231143334231 its reverse (1324333411321), we get a palindrome (2555476745552).

The spelling of 1231143334231 in words is "one trillion, two hundred thirty-one billion, one hundred forty-three million, three hundred thirty-four thousand, two hundred thirty-one".