123042450530 has 16 divisors (see below), whose sum is σ = 221672601720. Its totient is φ = 49173382272.

The previous prime is 123042450523. The next prime is 123042450589. The reversal of 123042450530 is 35054240321.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 99636816409 + 23405634121 = 315653^2 + 152989^2 .

It is a junction number, because it is equal to n+sod(n) for n = 123042450493 and 123042450502.

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 7 ways as a sum of consecutive naturals, for example, 5437889 + ... + 5460468.

Almost surely, 2^123042450530 is an apocalyptic number.

123042450530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123042450530 is a deficient number, since it is larger than the sum of its proper divisors (98630151190).

123042450530 is a wasteful number, since it uses less digits than its factorization.

123042450530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10899493.

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 123042450530 its reverse (35054240321), we get a palindrome (158096690851).

The spelling of 123042450530 in words is "one hundred twenty-three billion, forty-two million, four hundred fifty thousand, five hundred thirty".