131030233123 has 4 divisors (see below), whose sum is σ = 131038368120. Its totient is φ = 131022098128.

The previous prime is 131030233049. The next prime is 131030233153. The reversal of 131030233123 is 321332030131.

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 131030233123 - 2⁹ = 131030232611 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131030233094 and 131030233103.

It is not an unprimeable number, because it can be changed into a prime (131030233153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4043290 + ... + 4075567.

It is an arithmetic number, because the mean of its divisors is an integer number (32759592030).

Almost surely, 2^131030233123 is an apocalyptic number.

131030233123 is a deficient number, since it is larger than the sum of its proper divisors (8134997).

131030233123 is an equidigital number, since it uses as much as digits as its factorization.

131030233123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8134996.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 131030233123 its reverse (321332030131), we get a palindrome (452362263254).

The spelling of 131030233123 in words is "one hundred thirty-one billion, thirty million, two hundred thirty-three thousand, one hundred twenty-three".