123111302130 has 96 divisors (see below), whose sum is σ = 343033726464. Its totient is φ = 30553573248.

The previous prime is 123111302099. The next prime is 123111302141. The reversal of 123111302130 is 31203111321.

123111302130 is a `hidden beast` number, since 1 + 231 + 1 + 1 + 302 + 130 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 727114 + ... + 880293.

It is an arithmetic number, because the mean of its divisors is an integer number (3573267984).

Almost surely, 2^123111302130 is an apocalyptic number.

123111302130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123111302130 is an abundant number, since it is smaller than the sum of its proper divisors (219922424334).

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

123111302130 is a wasteful number, since it uses less digits than its factorization.

123111302130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1607480 (or 1607477 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 123111302130 its reverse (31203111321), we get a palindrome (154314413451).

The spelling of 123111302130 in words is "one hundred twenty-three billion, one hundred eleven million, three hundred two thousand, one hundred thirty".