12101965461 has 24 divisors (see below), whose sum is σ = 18135359424. Its totient is φ = 8064722880.

The previous prime is 12101965441. The next prime is 12101965483. The reversal of 12101965461 is 16456910121.

12101965461 is a `hidden beast` number, since 1 + 2 + 1 + 0 + 196 + 5 + 461 = 666.

12101965461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12101965461 - 2⁷ = 12101965333 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101965441) 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 23 ways as a sum of consecutive naturals, for example, 695376 + ... + 712566.

It is an arithmetic number, because the mean of its divisors is an integer number (755639976).

Almost surely, 2^12101965461 is an apocalyptic number.

It is an amenable number.

12101965461 is a deficient number, since it is larger than the sum of its proper divisors (6033393963).

12101965461 is an equidigital number, since it uses as much as digits as its factorization.

12101965461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20103 (or 20091 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The spelling of 12101965461 in words is "twelve billion, one hundred one million, nine hundred sixty-five thousand, four hundred sixty-one".