1301111125 has 16 divisors (see below), whose sum is σ = 1632060144. Its totient is φ = 1035585600.

The previous prime is 1301111113. The next prime is 1301111221. The reversal of 1301111125 is 5211111031.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 483208324 + 817902801 = 21982^2 + 28599^2 .

It is not a de Polignac number, because 1301111125 - 2¹⁷ = 1300980053 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1301111099 and 1301111108.

It is a congruent 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, 1794 + ... + 51043.

It is an arithmetic number, because the mean of its divisors is an integer number (102003759).

Almost surely, 2^1301111125 is an apocalyptic number.

It is an amenable number.

1301111125 is a deficient number, since it is larger than the sum of its proper divisors (330949019).

1301111125 is an equidigital number, since it uses as much as digits as its factorization.

1301111125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53049 (or 53039 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 16.

The square root of 1301111125 is about 36070.9179949721. The cubic root of 1301111125 is about 1091.7037365446.

Adding to 1301111125 its reverse (5211111031), we get a palindrome (6512222156).

The spelling of 1301111125 in words is "one billion, three hundred one million, one hundred eleven thousand, one hundred twenty-five".