123351045530 has 16 divisors (see below), whose sum is σ = 222323658984. Its totient is φ = 49275578880.

The previous prime is 123351045487. The next prime is 123351045553. The reversal of 123351045530 is 35540153321.

It can be written as a sum of positive squares in 4 ways, for example, as 21290603569 + 102060441961 = 145913^2 + 319469^2 .

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, 8096927 + ... + 8112146.

Almost surely, 2^123351045530 is an apocalyptic number.

123351045530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123351045530 is a deficient number, since it is larger than the sum of its proper divisors (98972613454).

123351045530 is a wasteful number, since it uses less digits than its factorization.

123351045530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16209841.

The product of its (nonzero) digits is 27000, while the sum is 32.

Adding to 123351045530 its reverse (35540153321), we get a palindrome (158891198851).

The spelling of 123351045530 in words is "one hundred twenty-three billion, three hundred fifty-one million, forty-five thousand, five hundred thirty".