123131210130 has 64 divisors (see below), whose sum is σ = 328607539200. Its totient is φ = 32809224960.

The previous prime is 123131210101. The next prime is 123131210141. The reversal of 123131210130 is 31012131321.

123131210130 is a `hidden beast` number, since 12 + 313 + 1 + 210 + 130 = 666.

It is a super-2 number, since 2×123131210130² (a number of 23 digits) contains 22 as substring.

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 31 ways as a sum of consecutive naturals, for example, 167050 + ... + 523610.

It is an arithmetic number, because the mean of its divisors is an integer number (5134492800).

Almost surely, 2^123131210130 is an apocalyptic number.

123131210130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123131210130 is an abundant number, since it is smaller than the sum of its proper divisors (205476329070).

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

123131210130 is a wasteful number, since it uses less digits than its factorization.

123131210130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357856 (or 357850 counting only the distinct ones).

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

Adding to 123131210130 its reverse (31012131321), we get a palindrome (154143341451).

The spelling of 123131210130 in words is "one hundred twenty-three billion, one hundred thirty-one million, two hundred ten thousand, one hundred thirty".