123210130 has 16 divisors (see below), whose sum is σ = 224817624. Its totient is φ = 48608640.

The previous prime is 123210121. The next prime is 123210133. The reversal of 123210130 is 31012321.

It can be written as a sum of positive squares in 4 ways, for example, as 57259489 + 65950641 = 7567^2 + 8121^2 .

It is a super-2 number, since 2×123210130² = 30361472269233800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 123210130.

It is not an unprimeable number, because it can be changed into a prime (123210133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83661 + ... + 85120.

Almost surely, 2^123210130 is an apocalyptic number.

123210130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123210130 is a deficient number, since it is larger than the sum of its proper divisors (101607494).

123210130 is a wasteful number, since it uses less digits than its factorization.

123210130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168861.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 123210130 is about 11100.0058558543. The cubic root of 123210130 is about 497.6020244789.

Adding to 123210130 its reverse (31012321), we get a palindrome (154222451).

The spelling of 123210130 in words is "one hundred twenty-three million, two hundred ten thousand, one hundred thirty".