125503425311603 has 4 divisors (see below), whose sum is σ = 125525037755040. Its totient is φ = 125481812868168.

The previous prime is 125503425311543. The next prime is 125503425311617. The reversal of 125503425311603 is 306113524305521.

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 125503425311603 - 2¹⁰ = 125503425310579 is a prime.

It is a super-2 number, since 2×125503425311603² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125503425311633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10806213008 + ... + 10806224621.

It is an arithmetic number, because the mean of its divisors is an integer number (31381259438760).

Almost surely, 2^{125503425311603} is an apocalyptic number.

125503425311603 is a deficient number, since it is larger than the sum of its proper divisors (21612443437).

125503425311603 is an equidigital number, since it uses as much as digits as its factorization.

125503425311603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21612443436.

The product of its (nonzero) digits is 324000, while the sum is 41.

The spelling of 125503425311603 in words is "one hundred twenty-five trillion, five hundred three billion, four hundred twenty-five million, three hundred eleven thousand, six hundred three".