123123265130 has 32 divisors (see below), whose sum is σ = 230049123840. Its totient is φ = 47394336960.

The previous prime is 123123265061. The next prime is 123123265141. The reversal of 123123265130 is 31562321321.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 123123265093 and 123123265102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1053929 + ... + 1164908.

It is an arithmetic number, because the mean of its divisors is an integer number (7189035120).

Almost surely, 2^123123265130 is an apocalyptic number.

123123265130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123123265130 is a deficient number, since it is larger than the sum of its proper divisors (106925858710).

123123265130 is a wasteful number, since it uses less digits than its factorization.

123123265130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2219054.

The product of its (nonzero) digits is 6480, while the sum is 29.

Adding to 123123265130 its reverse (31562321321), we get a palindrome (154685586451).

The spelling of 123123265130 in words is "one hundred twenty-three billion, one hundred twenty-three million, two hundred sixty-five thousand, one hundred thirty".