121752055673 has 4 divisors (see below), whose sum is σ = 121755919860. Its totient is φ = 121748191488.

The previous prime is 121752055661. The next prime is 121752055709. The reversal of 121752055673 is 376550257121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 376550257121 = 12037 ⋅31282733.

It can be written as a sum of positive squares in 2 ways, for example, as 57272626489 + 64479429184 = 239317^2 + 253928^2 .

It is a cyclic number.

It is not a de Polignac number, because 121752055673 - 2⁸ = 121752055417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121752055603) 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, 1884440 + ... + 1947977.

It is an arithmetic number, because the mean of its divisors is an integer number (30438979965).

Almost surely, 2^121752055673 is an apocalyptic number.

It is an amenable number.

121752055673 is a deficient number, since it is larger than the sum of its proper divisors (3864187).

121752055673 is an equidigital number, since it uses as much as digits as its factorization.

121752055673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3864186.

The product of its (nonzero) digits is 441000, while the sum is 44.

The spelling of 121752055673 in words is "one hundred twenty-one billion, seven hundred fifty-two million, fifty-five thousand, six hundred seventy-three".