125328138011 has 4 divisors (see below), whose sum is σ = 127452343800. Its totient is φ = 123203932224.

The previous prime is 125328137983. The next prime is 125328138031. The reversal of 125328138011 is 110831823521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 125328138011 - 2⁶ = 125328137947 is a prime.

It is a super-2 number, since 2×125328138011² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125328138031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1062102806 + ... + 1062102923.

It is an arithmetic number, because the mean of its divisors is an integer number (31863085950).

Almost surely, 2^125328138011 is an apocalyptic number.

125328138011 is a deficient number, since it is larger than the sum of its proper divisors (2124205789).

125328138011 is an equidigital number, since it uses as much as digits as its factorization.

125328138011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2124205788.

The product of its (nonzero) digits is 11520, while the sum is 35.

The spelling of 125328138011 in words is "one hundred twenty-five billion, three hundred twenty-eight million, one hundred thirty-eight thousand, eleven".