125342123 has 4 divisors (see below), whose sum is σ = 125457480. Its totient is φ = 125226768.

The previous prime is 125342101. The next prime is 125342131. The reversal of 125342123 is 321243521.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125342123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125342143) 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, 56033 + ... + 58226.

It is an arithmetic number, because the mean of its divisors is an integer number (31364370).

Almost surely, 2^125342123 is an apocalyptic number.

125342123 is a deficient number, since it is larger than the sum of its proper divisors (115357).

125342123 is a wasteful number, since it uses less digits than its factorization.

125342123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115356.

The product of its digits is 1440, while the sum is 23.

The square root of 125342123 is about 11195.6296383902. The cubic root of 125342123 is about 500.4557484605.

Adding to 125342123 its reverse (321243521), we get a palindrome (446585644).

The spelling of 125342123 in words is "one hundred twenty-five million, three hundred forty-two thousand, one hundred twenty-three".