121544400052 has 12 divisors (see below), whose sum is σ = 212845752000. Its totient is φ = 60731328056.

The previous prime is 121544400031. The next prime is 121544400067. The reversal of 121544400052 is 250004445121.

121544400052 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 10211302 + ... + 10223197.

It is an arithmetic number, because the mean of its divisors is an integer number (17737146000).

Almost surely, 2^121544400052 is an apocalyptic number.

It is an amenable number.

121544400052 is a deficient number, since it is larger than the sum of its proper divisors (91301351948).

121544400052 is a wasteful number, since it uses less digits than its factorization.

121544400052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20435990 (or 20435988 counting only the distinct ones).

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

Adding to 121544400052 its reverse (250004445121), we get a palindrome (371548845173).

The spelling of 121544400052 in words is "one hundred twenty-one billion, five hundred forty-four million, four hundred thousand, fifty-two".