131421103343 has 4 divisors (see below), whose sum is σ = 132722302488. Its totient is φ = 130119904200.

The previous prime is 131421103309. The next prime is 131421103357. The reversal of 131421103343 is 343301124131.

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

It is a cyclic number.

It is not a de Polignac number, because 131421103343 - 2⁸ = 131421103087 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 (131421106343) 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 3 ways as a sum of consecutive naturals, for example, 650599421 + ... + 650599622.

It is an arithmetic number, because the mean of its divisors is an integer number (33180575622).

Almost surely, 2^131421103343 is an apocalyptic number.

131421103343 is a deficient number, since it is larger than the sum of its proper divisors (1301199145).

131421103343 is a wasteful number, since it uses less digits than its factorization.

131421103343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1301199144.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 131421103343 its reverse (343301124131), we get a palindrome (474722227474).

The spelling of 131421103343 in words is "one hundred thirty-one billion, four hundred twenty-one million, one hundred three thousand, three hundred forty-three".