123055051 has 4 divisors (see below), whose sum is σ = 140634352. Its totient is φ = 105475752.

The previous prime is 123055013. The next prime is 123055087. The reversal of 123055051 is 150550321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 150550321 = 4603 ⋅32707.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123055051 is a prime.

It is a super-2 number, since 2×123055051² = 30285091153225202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123058051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8789640 + ... + 8789653.

It is an arithmetic number, because the mean of its divisors is an integer number (35158588).

Almost surely, 2^123055051 is an apocalyptic number.

123055051 is a deficient number, since it is larger than the sum of its proper divisors (17579301).

123055051 is an equidigital number, since it uses as much as digits as its factorization.

123055051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17579300.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 123055051 is about 11093.0181195200. The cubic root of 123055051 is about 497.3931671314.

The spelling of 123055051 in words is "one hundred twenty-three million, fifty-five thousand, fifty-one".