125323111 has 16 divisors (see below), whose sum is σ = 133539840. Its totient is φ = 117430560.

The previous prime is 125323073. The next prime is 125323117. The reversal of 125323111 is 111323521.

125323111 = T₉₁₃₉ + T₉₁₄₀ + T₉₁₄₁.

It is a cyclic number.

It is not a de Polignac number, because 125323111 - 2⁷ = 125322983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125323117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135910 + ... + 136828.

It is an arithmetic number, because the mean of its divisors is an integer number (8346240).

Almost surely, 2^125323111 is an apocalyptic number.

125323111 is the 9141-st centered triangular number.

125323111 is a deficient number, since it is larger than the sum of its proper divisors (8216729).

125323111 is an equidigital number, since it uses as much as digits as its factorization.

125323111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086.

The product of its digits is 180, while the sum is 19.

The square root of 125323111 is about 11194.7805248696. The cubic root of 125323111 is about 500.4304439963.

Adding to 125323111 its reverse (111323521), we get a palindrome (236646632).

The spelling of 125323111 in words is "one hundred twenty-five million, three hundred twenty-three thousand, one hundred eleven".