1231312323241 has 32 divisors (see below), whose sum is σ = 1710238521600. Its totient is φ = 855119220480.

The previous prime is 1231312323233. The next prime is 1231312323247. The reversal of 1231312323241 is 1423232131321.

It is not a de Polignac number, because 1231312323241 - 2³ = 1231312323233 is a prime.

It is a super-2 number, since 2×1231312323241² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1231312323247) 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 31 ways as a sum of consecutive naturals, for example, 21179286 + ... + 21237343.

It is an arithmetic number, because the mean of its divisors is an integer number (53444953800).

Almost surely, 2^{1231312323241} is an apocalyptic number.

1231312323241 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1231312323241 is a deficient number, since it is larger than the sum of its proper divisors (478926198359).

1231312323241 is a wasteful number, since it uses less digits than its factorization.

1231312323241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42416689.

The product of its digits is 5184, while the sum is 28.

Adding to 1231312323241 its reverse (1423232131321), we get a palindrome (2654544454562).

The spelling of 1231312323241 in words is "one trillion, two hundred thirty-one billion, three hundred twelve million, three hundred twenty-three thousand, two hundred forty-one".