123005343145 has 8 divisors (see below), whose sum is σ = 152367909120. Its totient is φ = 95229942960.

The previous prime is 123005343133. The next prime is 123005343163. The reversal of 123005343145 is 541343500321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123005343145 - 2⁷ = 123005343017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 396791275 + ... + 396791584.

It is an arithmetic number, because the mean of its divisors is an integer number (19045988640).

Almost surely, 2^123005343145 is an apocalyptic number.

It is an amenable number.

123005343145 is a deficient number, since it is larger than the sum of its proper divisors (29362565975).

123005343145 is an equidigital number, since it uses as much as digits as its factorization.

123005343145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793582895.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 123005343145 its reverse (541343500321), we get a palindrome (664348843466).

The spelling of 123005343145 in words is "one hundred twenty-three billion, five million, three hundred forty-three thousand, one hundred forty-five".