131022123103 has 4 divisors (see below), whose sum is σ = 131022864000. Its totient is φ = 131021382208.

The previous prime is 131022123097. The next prime is 131022123157. The reversal of 131022123103 is 301321220131.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 131022123103 - 2¹³ = 131022114911 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 (131022103103) 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, 67023 + ... + 516271.

It is an arithmetic number, because the mean of its divisors is an integer number (32755716000).

Almost surely, 2^131022123103 is an apocalyptic number.

131022123103 is a deficient number, since it is larger than the sum of its proper divisors (740897).

131022123103 is an equidigital number, since it uses as much as digits as its factorization.

131022123103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740896.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 131022123103 its reverse (301321220131), we get a palindrome (432343343234).

The spelling of 131022123103 in words is "one hundred thirty-one billion, twenty-two million, one hundred twenty-three thousand, one hundred three".