125125445311 has 4 divisors (see below), whose sum is σ = 128035339432. Its totient is φ = 122215551192.

The previous prime is 125125445303. The next prime is 125125445339. The reversal of 125125445311 is 113544521521.

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 125125445311 - 2³ = 125125445303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125125445911) 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, 1454946996 + ... + 1454947081.

It is an arithmetic number, because the mean of its divisors is an integer number (32008834858).

Almost surely, 2^125125445311 is an apocalyptic number.

125125445311 is a deficient number, since it is larger than the sum of its proper divisors (2909894121).

125125445311 is an equidigital number, since it uses as much as digits as its factorization.

125125445311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2909894120.

The product of its digits is 24000, while the sum is 34.

Adding to 125125445311 its reverse (113544521521), we get a palindrome (238669966832).

The spelling of 125125445311 in words is "one hundred twenty-five billion, one hundred twenty-five million, four hundred forty-five thousand, three hundred eleven".