123111323130 has 32 divisors (see below), whose sum is σ = 295524687168. Its totient is φ = 32823296000.

The previous prime is 123111323107. The next prime is 123111323173. The reversal of 123111323130 is 31323111321.

It is a happy number.

123111323130 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 123111323097 and 123111323106.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 241671 + ... + 551930.

It is an arithmetic number, because the mean of its divisors is an integer number (9235146474).

Almost surely, 2^123111323130 is an apocalyptic number.

123111323130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123111323130 is an abundant number, since it is smaller than the sum of its proper divisors (172413364038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123111323130 is a wasteful number, since it uses less digits than its factorization.

123111323130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798782.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 123111323130 its reverse (31323111321), we get a palindrome (154434434451).

The spelling of 123111323130 in words is "one hundred twenty-three billion, one hundred eleven million, three hundred twenty-three thousand, one hundred thirty".