123005053051 has 4 divisors (see below), whose sum is σ = 123515447704. Its totient is φ = 122494658400.

The previous prime is 123005053049. The next prime is 123005053091. The reversal of 123005053051 is 150350500321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 150350500321 = 7 ⋅21478642903.

It is a cyclic number.

It is not a de Polignac number, because 123005053051 - 2¹ = 123005053049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123005053091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255196965 + ... + 255197446.

It is an arithmetic number, because the mean of its divisors is an integer number (30878861926).

Almost surely, 2^123005053051 is an apocalyptic number.

123005053051 is a deficient number, since it is larger than the sum of its proper divisors (510394653).

123005053051 is an equidigital number, since it uses as much as digits as its factorization.

123005053051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510394652.

The product of its (nonzero) digits is 2250, while the sum is 25.

Adding to 123005053051 its reverse (150350500321), we get a palindrome (273355553372).

The spelling of 123005053051 in words is "one hundred twenty-three billion, five million, fifty-three thousand, fifty-one".