121045440052 has 12 divisors (see below), whose sum is σ = 215419851360. Its totient is φ = 59496911096.

The previous prime is 121045440013. The next prime is 121045440059. The reversal of 121045440052 is 250044540121.

It is a self number, because there is not a number n which added to its sum of digits gives 121045440052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121045440059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256451968 + ... + 256452439.

It is an arithmetic number, because the mean of its divisors is an integer number (17951654280).

Almost surely, 2^121045440052 is an apocalyptic number.

It is an amenable number.

121045440052 is a deficient number, since it is larger than the sum of its proper divisors (94374411308).

121045440052 is a wasteful number, since it uses less digits than its factorization.

121045440052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512904470 (or 512904468 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

Adding to 121045440052 its reverse (250044540121), we get a palindrome (371089980173).

The spelling of 121045440052 in words is "one hundred twenty-one billion, forty-five million, four hundred forty thousand, fifty-two".