131422402111243 has 4 divisors (see below), whose sum is σ = 131464511182648. Its totient is φ = 131380293039840.

The previous prime is 131422402111171. The next prime is 131422402111283. The reversal of 131422402111243 is 342111204224131.

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 131422402111243 - 2⁹ = 131422402110731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131422402111283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21054531021 + ... + 21054537262.

It is an arithmetic number, because the mean of its divisors is an integer number (32866127795662).

Almost surely, 2^{131422402111243} is an apocalyptic number.

131422402111243 is a deficient number, since it is larger than the sum of its proper divisors (42109071405).

131422402111243 is an equidigital number, since it uses as much as digits as its factorization.

131422402111243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42109071404.

The product of its (nonzero) digits is 9216, while the sum is 31.

Adding to 131422402111243 its reverse (342111204224131), we get a palindrome (473533606335374).

The spelling of 131422402111243 in words is "one hundred thirty-one trillion, four hundred twenty-two billion, four hundred two million, one hundred eleven thousand, two hundred forty-three".