123345051 has 4 divisors (see below), whose sum is σ = 164460072. Its totient is φ = 82230032.

The previous prime is 123345043. The next prime is 123345059. The reversal of 123345051 is 150543321.

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

It is an interprime number because it is at equal distance from previous prime (123345043) and next prime (123345059).

It is a cyclic number.

It is not a de Polignac number, because 123345051 - 2³ = 123345043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123345059) 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, 20557506 + ... + 20557511.

It is an arithmetic number, because the mean of its divisors is an integer number (41115018).

Almost surely, 2^123345051 is an apocalyptic number.

123345051 is a deficient number, since it is larger than the sum of its proper divisors (41115021).

123345051 is an equidigital number, since it uses as much as digits as its factorization.

123345051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41115020.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 123345051 is about 11106.0817122872. The cubic root of 123345051 is about 497.7835909122.

Adding to 123345051 its reverse (150543321), we get a palindrome (273888372).

The spelling of 123345051 in words is "one hundred twenty-three million, three hundred forty-five thousand, fifty-one".