123230303131 has 4 divisors (see below), whose sum is σ = 132709557232. Its totient is φ = 113751049032.

The previous prime is 123230303123. The next prime is 123230303167. The reversal of 123230303131 is 131303032321.

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 123230303131 - 2³ = 123230303123 is a prime.

It is a super-2 number, since 2×123230303131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123230313131) 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, 4739627031 + ... + 4739627056.

It is an arithmetic number, because the mean of its divisors is an integer number (33177389308).

Almost surely, 2^123230303131 is an apocalyptic number.

123230303131 is a deficient number, since it is larger than the sum of its proper divisors (9479254101).

123230303131 is an equidigital number, since it uses as much as digits as its factorization.

123230303131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9479254100.

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

Adding to 123230303131 its reverse (131303032321), we get a palindrome (254533335452).

The spelling of 123230303131 in words is "one hundred twenty-three billion, two hundred thirty million, three hundred three thousand, one hundred thirty-one".