125353203311 has 24 divisors (see below), whose sum is σ = 149869105920. Its totient is φ = 104501949552.

The previous prime is 125353203259. The next prime is 125353203343. The reversal of 125353203311 is 113302353521.

It is a happy number.

It is not a de Polignac number, because 125353203311 - 2¹⁸ = 125352941167 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 (125353203011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17696 + ... + 501018.

It is an arithmetic number, because the mean of its divisors is an integer number (6244546080).

Almost surely, 2^125353203311 is an apocalyptic number.

125353203311 is a deficient number, since it is larger than the sum of its proper divisors (24515902609).

125353203311 is an equidigital number, since it uses as much as digits as its factorization.

125353203311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483483 (or 483476 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 29.

Adding to 125353203311 its reverse (113302353521), we get a palindrome (238655556832).

The spelling of 125353203311 in words is "one hundred twenty-five billion, three hundred fifty-three million, two hundred three thousand, three hundred eleven".