121415443364 has 6 divisors (see below), whose sum is σ = 212477025894. Its totient is φ = 60707721680.

The previous prime is 121415443363. The next prime is 121415443381. The reversal of 121415443364 is 463344514121.

It can be written as a sum of positive squares in only one way, i.e., 115639443364 + 5776000000 = 340058^2 + 76000^2 .

It is not an unprimeable number, because it can be changed into a prime (121415443363) 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 as a sum of consecutive naturals, namely, 15176930417 + ... + 15176930424.

It is an arithmetic number, because the mean of its divisors is an integer number (35412837649).

Almost surely, 2^121415443364 is an apocalyptic number.

It is an amenable number.

121415443364 is a deficient number, since it is larger than the sum of its proper divisors (91061582530).

121415443364 is a wasteful number, since it uses less digits than its factorization.

121415443364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30353860845 (or 30353860843 counting only the distinct ones).

The product of its digits is 138240, while the sum is 38.

Adding to 121415443364 its reverse (463344514121), we get a palindrome (584759957485).

The spelling of 121415443364 in words is "one hundred twenty-one billion, four hundred fifteen million, four hundred forty-three thousand, three hundred sixty-four".