121550254053 has 4 divisors (see below), whose sum is σ = 162067005408. Its totient is φ = 81033502700.

The previous prime is 121550254009. The next prime is 121550254057. The reversal of 121550254053 is 350452055121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121550254053 - 2¹⁰ = 121550253029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121550254057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20258375673 + ... + 20258375678.

It is an arithmetic number, because the mean of its divisors is an integer number (40516751352).

Almost surely, 2^121550254053 is an apocalyptic number.

It is an amenable number.

121550254053 is a deficient number, since it is larger than the sum of its proper divisors (40516751355).

121550254053 is an equidigital number, since it uses as much as digits as its factorization.

121550254053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40516751354.

The product of its (nonzero) digits is 30000, while the sum is 33.

The spelling of 121550254053 in words is "one hundred twenty-one billion, five hundred fifty million, two hundred fifty-four thousand, fifty-three".