125420420303 has 16 divisors (see below), whose sum is σ = 128901980160. Its totient is φ = 121989067200.

The previous prime is 125420420299. The next prime is 125420420317. The reversal of 125420420303 is 303024024521.

It is a cyclic number.

It is not a de Polignac number, because 125420420303 - 2² = 125420420299 is a prime.

It is a super-2 number, since 2×125420420303² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125420420393) 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 15 ways as a sum of consecutive naturals, for example, 7401026 + ... + 7417952.

It is an arithmetic number, because the mean of its divisors is an integer number (8056373760).

Almost surely, 2^125420420303 is an apocalyptic number.

125420420303 is a deficient number, since it is larger than the sum of its proper divisors (3481559857).

125420420303 is a wasteful number, since it uses less digits than its factorization.

125420420303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18398.

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 125420420303 its reverse (303024024521), we get a palindrome (428444444824).

The spelling of 125420420303 in words is "one hundred twenty-five billion, four hundred twenty million, four hundred twenty thousand, three hundred three".