6243342131261 has 4 divisors (see below), whose sum is σ = 6361141039452. Its totient is φ = 6125543223072.

The previous prime is 6243342131233. The next prime is 6243342131269. The reversal of 6243342131261 is 1621312433426.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3379144680025 + 2864197451236 = 1838245^2 + 1692394^2 .

It is a cyclic number.

It is not a de Polignac number, because 6243342131261 - 2⁶ = 6243342131197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6243342131269) 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 3 ways as a sum of consecutive naturals, for example, 58899454016 + ... + 58899454121.

It is an arithmetic number, because the mean of its divisors is an integer number (1590285259863).

Almost surely, 2^{6243342131261} is an apocalyptic number.

It is an amenable number.

6243342131261 is a deficient number, since it is larger than the sum of its proper divisors (117798908191).

6243342131261 is a wasteful number, since it uses less digits than its factorization.

6243342131261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117798908190.

The product of its digits is 124416, while the sum is 38.

Adding to 6243342131261 its reverse (1621312433426), we get a palindrome (7864654564687).

The spelling of 6243342131261 in words is "six trillion, two hundred forty-three billion, three hundred forty-two million, one hundred thirty-one thousand, two hundred sixty-one".