120543262770505 has 4 divisors (see below), whose sum is σ = 144651915324612. Its totient is φ = 96434610216400.

The previous prime is 120543262770481. The next prime is 120543262770509. The reversal of 120543262770505 is 505077262345021.

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 53156304160569 + 67386958609936 = 7290837^2 + 8208956^2 .

It is not a de Polignac number, because 120543262770505 - 2¹⁹ = 120543262246217 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120543262770509) 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, 12054326277046 + ... + 12054326277055.

It is an arithmetic number, because the mean of its divisors is an integer number (36162978831153).

Almost surely, 2^{120543262770505} is an apocalyptic number.

It is an amenable number.

120543262770505 is a deficient number, since it is larger than the sum of its proper divisors (24108652554107).

120543262770505 is an equidigital number, since it uses as much as digits as its factorization.

120543262770505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24108652554106.

The product of its (nonzero) digits is 3528000, while the sum is 49.

The spelling of 120543262770505 in words is "one hundred twenty trillion, five hundred forty-three billion, two hundred sixty-two million, seven hundred seventy thousand, five hundred five".