131322123 has 6 divisors (see below), whose sum is σ = 189687524. Its totient is φ = 87548076.

The previous prime is 131322101. The next prime is 131322131. The reversal of 131322123 is 321223131.

It is not a de Polignac number, because 131322123 - 2¹⁷ = 131191051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131322096 and 131322105.

It is not an unprimeable number, because it can be changed into a prime (131322223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7295665 + ... + 7295682.

Almost surely, 2^131322123 is an apocalyptic number.

131322123 is a deficient number, since it is larger than the sum of its proper divisors (58365401).

131322123 is a wasteful number, since it uses less digits than its factorization.

131322123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14591353 (or 14591350 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 131322123 is about 11459.5865108650. The cubic root of 131322123 is about 508.2912477804.

Adding to 131322123 its reverse (321223131), we get a palindrome (452545254).

It can be divided in two parts, 1313 and 22123, that added together give a triangular number (23436 = T₂₁₆).

The spelling of 131322123 in words is "one hundred thirty-one million, three hundred twenty-two thousand, one hundred twenty-three".