121512061347136 has 28 divisors (see below), whose sum is σ = 241236155799520. Its totient is φ = 60728148074880.

The previous prime is 121512061347107. The next prime is 121512061347161. The reversal of 121512061347136 is 631743160215121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 121512061347092 and 121512061347101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 435525060 + ... + 435803971.

It is an arithmetic number, because the mean of its divisors is an integer number (8615576992840).

Almost surely, 2^{121512061347136} is an apocalyptic number.

121512061347136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

121512061347136 is a deficient number, since it is larger than the sum of its proper divisors (119724094452384).

121512061347136 is an equidigital number, since it uses as much as digits as its factorization.

121512061347136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871331222 (or 871331212 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 121512061347136 in words is "one hundred twenty-one trillion, five hundred twelve billion, sixty-one million, three hundred forty-seven thousand, one hundred thirty-six".