12135115970 has 16 divisors (see below), whose sum is σ = 21859944768. Its totient is φ = 4850327280.

The previous prime is 12135115969. The next prime is 12135115973. The reversal of 12135115970 is 7951153121.

12135115970 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12135115970² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12135115970.

It is not an unprimeable number, because it can be changed into a prime (12135115973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 451166 + ... + 477305.

It is an arithmetic number, because the mean of its divisors is an integer number (1366246548).

Almost surely, 2^12135115970 is an apocalyptic number.

12135115970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12135115970 is a deficient number, since it is larger than the sum of its proper divisors (9724828798).

12135115970 is a wasteful number, since it uses less digits than its factorization.

12135115970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929785.

The product of its (nonzero) digits is 9450, while the sum is 35.

The spelling of 12135115970 in words is "twelve billion, one hundred thirty-five million, one hundred fifteen thousand, nine hundred seventy".