131421101304243 has 8 divisors (see below), whose sum is σ = 180880655558656. Its totient is φ = 84787807293000.

The previous prime is 131421101304239. The next prime is 131421101304257. The reversal of 131421101304243 is 342403101124131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131421101304243 - 2² = 131421101304239 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131421101304243.

It is not an unprimeable number, because it can be changed into a prime (131421101304223) 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, 706565060683 + ... + 706565060868.

It is an arithmetic number, because the mean of its divisors is an integer number (22610081944832).

Almost surely, 2^{131421101304243} is an apocalyptic number.

131421101304243 is a deficient number, since it is larger than the sum of its proper divisors (49459554254413).

131421101304243 is a wasteful number, since it uses less digits than its factorization.

131421101304243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1413130121585.

The product of its (nonzero) digits is 6912, while the sum is 30.

Adding to 131421101304243 its reverse (342403101124131), we get a palindrome (473824202428374).

The spelling of 131421101304243 in words is "one hundred thirty-one trillion, four hundred twenty-one billion, one hundred one million, three hundred four thousand, two hundred forty-three".