121051506344 has 8 divisors (see below), whose sum is σ = 226971574410. Its totient is φ = 60525753168.

The previous prime is 121051506343. The next prime is 121051506353. The reversal of 121051506344 is 443605150121.

It can be written as a sum of positive squares in only one way, i.e., 116989993444 + 4061512900 = 342038^2 + 63730^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 121051506344.

It is not an unprimeable number, because it can be changed into a prime (121051506343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7565719139 + ... + 7565719154.

Almost surely, 2^121051506344 is an apocalyptic number.

It is an amenable number.

121051506344 is a deficient number, since it is larger than the sum of its proper divisors (105920068066).

121051506344 is a wasteful number, since it uses less digits than its factorization.

121051506344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15131438299 (or 15131438295 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

Adding to 121051506344 its reverse (443605150121), we get a palindrome (564656656465).

The spelling of 121051506344 in words is "one hundred twenty-one billion, fifty-one million, five hundred six thousand, three hundred forty-four".