125536121723 has 2 divisors, whose sum is σ = 125536121724. Its totient is φ = 125536121722.

The previous prime is 125536121677. The next prime is 125536121849. The reversal of 125536121723 is 327121635521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125536121723 - 2⁸ = 125536121467 is a prime.

It is not a weakly prime, because it can be changed into another prime (125536121023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62768060861 + 62768060862.

It is an arithmetic number, because the mean of its divisors is an integer number (62768060862).

Almost surely, 2^125536121723 is an apocalyptic number.

125536121723 is a deficient number, since it is larger than the sum of its proper divisors (1).

125536121723 is an equidigital number, since it uses as much as digits as its factorization.

125536121723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75600, while the sum is 38.

The spelling of 125536121723 in words is "one hundred twenty-five billion, five hundred thirty-six million, one hundred twenty-one thousand, seven hundred twenty-three".