121350155543 has 8 divisors (see below), whose sum is σ = 121874544000. Its totient is φ = 120826897408.

The previous prime is 121350155533. The next prime is 121350155569. The reversal of 121350155543 is 345551053121.

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

It is a cyclic number.

It is not a de Polignac number, because 121350155543 - 2¹⁶ = 121350090007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121350155513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67046 + ... + 497187.

It is an arithmetic number, because the mean of its divisors is an integer number (15234318000).

Almost surely, 2^121350155543 is an apocalyptic number.

121350155543 is a deficient number, since it is larger than the sum of its proper divisors (524388457).

121350155543 is an equidigital number, since it uses as much as digits as its factorization.

121350155543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565161.

The product of its (nonzero) digits is 45000, while the sum is 35.

The spelling of 121350155543 in words is "one hundred twenty-one billion, three hundred fifty million, one hundred fifty-five thousand, five hundred forty-three".