121513374746 has 8 divisors (see below), whose sum is σ = 182738623860. Its totient is φ = 60600500128.

The previous prime is 121513374739. The next prime is 121513374769. The reversal of 121513374746 is 647473315121.

It can be written as a sum of positive squares in 2 ways, for example, as 93620700625 + 27892674121 = 305975^2 + 167011^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 121513374697 and 121513374706.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 78092651 + ... + 78094206.

Almost surely, 2^121513374746 is an apocalyptic number.

121513374746 is a deficient number, since it is larger than the sum of its proper divisors (61225249114).

121513374746 is a wasteful number, since it uses less digits than its factorization.

121513374746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156187248.

The product of its digits is 423360, while the sum is 44.

Adding to 121513374746 its reverse (647473315121), we get a palindrome (768986689867).

The spelling of 121513374746 in words is "one hundred twenty-one billion, five hundred thirteen million, three hundred seventy-four thousand, seven hundred forty-six".