12135357050 has 48 divisors (see below), whose sum is σ = 22856441112. Its totient is φ = 4793184000.

The previous prime is 12135357049. The next prime is 12135357067. The reversal of 12135357050 is 5075353121.

It can be written as a sum of positive squares in 12 ways, for example, as 1625621761 + 10509735289 = 40319^2 + 102517^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12135356998 and 12135357016.

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 23 ways as a sum of consecutive naturals, for example, 2001824 + ... + 2007876.

Almost surely, 2^12135357050 is an apocalyptic number.

12135357050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12135357050 is a deficient number, since it is larger than the sum of its proper divisors (10721084062).

12135357050 is a wasteful number, since it uses less digits than its factorization.

12135357050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6563 (or 6558 counting only the distinct ones).

The product of its (nonzero) digits is 15750, while the sum is 32.

The spelling of 12135357050 in words is "twelve billion, one hundred thirty-five million, three hundred fifty-seven thousand, fifty".