131103032223121 has 4 divisors (see below), whose sum is σ = 149832036826432. Its totient is φ = 112374027619812.

The previous prime is 131103032223113. The next prime is 131103032223127. The reversal of 131103032223121 is 121322230301131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 131103032223121 - 2³ = 131103032223113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131103032223127) 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, 9364502301645 + ... + 9364502301658.

It is an arithmetic number, because the mean of its divisors is an integer number (37458009206608).

Almost surely, 2^{131103032223121} is an apocalyptic number.

It is an amenable number.

131103032223121 is a deficient number, since it is larger than the sum of its proper divisors (18729004603311).

131103032223121 is an equidigital number, since it uses as much as digits as its factorization.

131103032223121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18729004603310.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 131103032223121 its reverse (121322230301131), we get a palindrome (252425262524252).

The spelling of 131103032223121 in words is "one hundred thirty-one trillion, one hundred three billion, thirty-two million, two hundred twenty-three thousand, one hundred twenty-one".