123507064250 has 16 divisors (see below), whose sum is σ = 231205224744. Its totient is φ = 49402825600.

The previous prime is 123507064249. The next prime is 123507064271. The reversal of 123507064250 is 52460705321.

It can be written as a sum of positive squares in 4 ways, for example, as 56497011481 + 67010052769 = 237691^2 + 258863^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 123507064250.

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, 247013879 + ... + 247014378.

Almost surely, 2^123507064250 is an apocalyptic number.

123507064250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123507064250 is a deficient number, since it is larger than the sum of its proper divisors (107698160494).

123507064250 is an equidigital number, since it uses as much as digits as its factorization.

123507064250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494028274 (or 494028264 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 35.

Adding to 123507064250 its reverse (52460705321), we get a palindrome (175967769571).

The spelling of 123507064250 in words is "one hundred twenty-three billion, five hundred seven million, sixty-four thousand, two hundred fifty".