125153515203 has 8 divisors (see below), whose sum is σ = 170421808128. Its totient is φ = 81660449544.

The previous prime is 125153515199. The next prime is 125153515237. The reversal of 125153515203 is 302515351521.

It is a happy number.

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

It is not a de Polignac number, because 125153515203 - 2² = 125153515199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125153565203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 443806651 + ... + 443806932.

It is an arithmetic number, because the mean of its divisors is an integer number (21302726016).

Almost surely, 2^125153515203 is an apocalyptic number.

125153515203 is a deficient number, since it is larger than the sum of its proper divisors (45268292925).

125153515203 is an equidigital number, since it uses as much as digits as its factorization.

125153515203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887613633.

The product of its (nonzero) digits is 22500, while the sum is 33.

Adding to 125153515203 its reverse (302515351521), we get a palindrome (427668866724).

The spelling of 125153515203 in words is "one hundred twenty-five billion, one hundred fifty-three million, five hundred fifteen thousand, two hundred three".