12121740316 has 24 divisors (see below), whose sum is σ = 25669568736. Its totient is φ = 4889441280.

The previous prime is 12121740313. The next prime is 12121740317. The reversal of 12121740316 is 61304712121.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121740313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12732445 + ... + 12733396.

It is an arithmetic number, because the mean of its divisors is an integer number (1069565364).

Almost surely, 2^12121740316 is an apocalyptic number.

It is an amenable number.

12121740316 is an abundant number, since it is smaller than the sum of its proper divisors (13547828420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12121740316 is a wasteful number, since it uses less digits than its factorization.

12121740316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25465869 (or 25465867 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The spelling of 12121740316 in words is "twelve billion, one hundred twenty-one million, seven hundred forty thousand, three hundred sixteen".