131302232123 has 16 divisors (see below), whose sum is σ = 140373305856. Its totient is φ = 122547828480.

The previous prime is 131302232107. The next prime is 131302232129. The reversal of 131302232123 is 321232203131.

It is a cyclic number.

It is not a de Polignac number, because 131302232123 - 2⁴ = 131302232107 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131302232129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 256061 + ... + 572862.

It is an arithmetic number, because the mean of its divisors is an integer number (8773331616).

Almost surely, 2^131302232123 is an apocalyptic number.

131302232123 is a deficient number, since it is larger than the sum of its proper divisors (9071073733).

131302232123 is an equidigital number, since it uses as much as digits as its factorization.

131302232123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 829114.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 131302232123 its reverse (321232203131), we get a palindrome (452534435254).

The spelling of 131302232123 in words is "one hundred thirty-one billion, three hundred two million, two hundred thirty-two thousand, one hundred twenty-three".