125011311 has 8 divisors (see below), whose sum is σ = 167546160. Its totient is φ = 82908672.

The previous prime is 125011301. The next prime is 125011331. The reversal of 125011311 is 113110521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 125011311 - 2⁶ = 125011247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125011301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107376 + ... + 108533.

It is an arithmetic number, because the mean of its divisors is an integer number (20943270).

Almost surely, 2^125011311 is an apocalyptic number.

125011311 is a deficient number, since it is larger than the sum of its proper divisors (42534849).

125011311 is a wasteful number, since it uses less digits than its factorization.

125011311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216105.

The product of its (nonzero) digits is 30, while the sum is 15.

The square root of 125011311 is about 11180.8457193541. The cubic root of 125011311 is about 500.0150808785.

Adding to 125011311 its reverse (113110521), we get a palindrome (238121832).

It can be divided in two parts, 1250 and 11311, that added together give a triangular number (12561 = T₁₅₈).

The spelling of 125011311 in words is "one hundred twenty-five million, eleven thousand, three hundred eleven".