125102020305 has 16 divisors (see below), whose sum is σ = 200361634560. Its totient is φ = 66654943488.

The previous prime is 125102020297. The next prime is 125102020327. The reversal of 125102020305 is 503020201521.

It is not a de Polignac number, because 125102020305 - 2³ = 125102020297 is a prime.

It is a super-3 number, since 3×125102020305³ (a number of 34 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4117737 + ... + 4148006.

It is an arithmetic number, because the mean of its divisors is an integer number (12522602160).

Almost surely, 2^125102020305 is an apocalyptic number.

125102020305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125102020305 is a deficient number, since it is larger than the sum of its proper divisors (75259614255).

125102020305 is a wasteful number, since it uses less digits than its factorization.

125102020305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8266760.

The product of its (nonzero) digits is 600, while the sum is 21.

Adding to 125102020305 its reverse (503020201521), we get a palindrome (628122221826).

The spelling of 125102020305 in words is "one hundred twenty-five billion, one hundred two million, twenty thousand, three hundred five".