123132312131 has 8 divisors (see below), whose sum is σ = 123392631744. Its totient is φ = 122872085440.

The previous prime is 123132312097. The next prime is 123132312143. The reversal of 123132312131 is 131213231321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123132312131 - 2⁶ = 123132312067 is a prime.

It is a super-2 number, since 2×123132312131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123132312097 and 123132312106.

It is not an unprimeable number, because it can be changed into a prime (123132312161) 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 7 ways as a sum of consecutive naturals, for example, 3055445 + ... + 3095481.

It is an arithmetic number, because the mean of its divisors is an integer number (15424078968).

Almost surely, 2^123132312131 is an apocalyptic number.

123132312131 is a deficient number, since it is larger than the sum of its proper divisors (260319613).

123132312131 is an equidigital number, since it uses as much as digits as its factorization.

123132312131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46461.

The product of its digits is 648, while the sum is 23.

Adding to 123132312131 its reverse (131213231321), we get a palindrome (254345543452).

The spelling of 123132312131 in words is "one hundred twenty-three billion, one hundred thirty-two million, three hundred twelve thousand, one hundred thirty-one".