1012125305 has 16 divisors (see below), whose sum is σ = 1228716864. Its totient is φ = 800291520.

The previous prime is 1012125253. The next prime is 1012125319. The reversal of 1012125305 is 5035212101.

It is a happy number.

It is not a de Polignac number, because 1012125305 - 2⁶ = 1012125241 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 260759 + ... + 264611.

It is an arithmetic number, because the mean of its divisors is an integer number (76794804).

Almost surely, 2^1012125305 is an apocalyptic number.

It is an amenable number.

1012125305 is a deficient number, since it is larger than the sum of its proper divisors (216591559).

1012125305 is a wasteful number, since it uses less digits than its factorization.

1012125305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4456.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 1012125305 is about 31813.9168446766. The cubic root of 1012125305 is about 1004.0255416035.

Adding to 1012125305 its reverse (5035212101), we get a palindrome (6047337406).

The spelling of 1012125305 in words is "one billion, twelve million, one hundred twenty-five thousand, three hundred five".