123230300031 has 12 divisors (see below), whose sum is σ = 178020654552. Its totient is φ = 82143687696.

The previous prime is 123230300023. The next prime is 123230300041. The reversal of 123230300031 is 130003032321.

123230300031 is a `hidden beast` number, since 12 + 323 + 0 + 300 + 0 + 31 = 666.

It is not a de Polignac number, because 123230300031 - 2³ = 123230300023 is a prime.

It is a super-2 number, since 2×123230300031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123230299977 and 123230300013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123230300041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 740796 + ... + 891761.

It is an arithmetic number, because the mean of its divisors is an integer number (14835054546).

Almost surely, 2^123230300031 is an apocalyptic number.

123230300031 is a deficient number, since it is larger than the sum of its proper divisors (54790354521).

123230300031 is a wasteful number, since it uses less digits than its factorization.

123230300031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1640950 (or 1640947 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 123230300031 its reverse (130003032321), we get a palindrome (253233332352).

The spelling of 123230300031 in words is "one hundred twenty-three billion, two hundred thirty million, three hundred thousand, thirty-one".