125101540243 has 2 divisors, whose sum is σ = 125101540244. Its totient is φ = 125101540242.

The previous prime is 125101540231. The next prime is 125101540327. The reversal of 125101540243 is 342045101521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125101540243 - 2¹³ = 125101532051 is a prime.

It is not a weakly prime, because it can be changed into another prime (125101546243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62550770121 + 62550770122.

It is an arithmetic number, because the mean of its divisors is an integer number (62550770122).

Almost surely, 2^125101540243 is an apocalyptic number.

125101540243 is a deficient number, since it is larger than the sum of its proper divisors (1).

125101540243 is an equidigital number, since it uses as much as digits as its factorization.

125101540243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 125101540243 its reverse (342045101521), we get a palindrome (467146641764).

The spelling of 125101540243 in words is "one hundred twenty-five billion, one hundred one million, five hundred forty thousand, two hundred forty-three".