125001265111 has 2 divisors, whose sum is σ = 125001265112. Its totient is φ = 125001265110.

The previous prime is 125001265097. The next prime is 125001265141. The reversal of 125001265111 is 111562100521.

It is a weak prime.

It is an emirp because it is prime and its reverse (111562100521) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125001265111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125001265141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62500632555 + 62500632556.

It is an arithmetic number, because the mean of its divisors is an integer number (62500632556).

Almost surely, 2^125001265111 is an apocalyptic number.

125001265111 is a deficient number, since it is larger than the sum of its proper divisors (1).

125001265111 is an equidigital number, since it uses as much as digits as its factorization.

125001265111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 600, while the sum is 25.

Adding to 125001265111 its reverse (111562100521), we get a palindrome (236563365632).

The spelling of 125001265111 in words is "one hundred twenty-five billion, one million, two hundred sixty-five thousand, one hundred eleven".