5543505124121 has 4 divisors (see below), whose sum is σ = 5869593660852. Its totient is φ = 5217416587392.

The previous prime is 5543505124099. The next prime is 5543505124141. The reversal of 5543505124121 is 1214215053455.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3748076640025 + 1795428484096 = 1935995^2 + 1339936^2 .

It is a cyclic number.

It is not a de Polignac number, because 5543505124121 - 2²² = 5543500929817 is a prime.

It is a super-2 number, since 2×5543505124121² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5543505124141) 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, 163044268340 + ... + 163044268373.

It is an arithmetic number, because the mean of its divisors is an integer number (1467398415213).

Almost surely, 2^{5543505124121} is an apocalyptic number.

It is an amenable number.

5543505124121 is a deficient number, since it is larger than the sum of its proper divisors (326088536731).

5543505124121 is a wasteful number, since it uses less digits than its factorization.

5543505124121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326088536730.

The product of its (nonzero) digits is 120000, while the sum is 38.

The spelling of 5543505124121 in words is "five trillion, five hundred forty-three billion, five hundred five million, one hundred twenty-four thousand, one hundred twenty-one".