125311723 has 2 divisors, whose sum is σ = 125311724. Its totient is φ = 125311722.

The previous prime is 125311721. The next prime is 125311787. The reversal of 125311723 is 327113521.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125311723 - 2¹ = 125311721 is a prime.

Together with 125311721, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (125311721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62655861 + 62655862.

It is an arithmetic number, because the mean of its divisors is an integer number (62655862).

Almost surely, 2^125311723 is an apocalyptic number.

125311723 is a deficient number, since it is larger than the sum of its proper divisors (1).

125311723 is an equidigital number, since it uses as much as digits as its factorization.

125311723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1260, while the sum is 25.

The square root of 125311723 is about 11194.2718834232. The cubic root of 125311723 is about 500.4152856468.

The spelling of 125311723 in words is "one hundred twenty-five million, three hundred eleven thousand, seven hundred twenty-three".