1311010225 has 24 divisors (see below), whose sum is σ = 1861736000. Its totient is φ = 897117120.

The previous prime is 1311010223. The next prime is 1311010229. The reversal of 1311010225 is 5220101131.

It is not a de Polignac number, because 1311010225 - 2¹ = 1311010223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1311010199 and 1311010208.

It is not an unprimeable number, because it can be changed into a prime (1311010223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79819 + ... + 94831.

Almost surely, 2^1311010225 is an apocalyptic number.

It is an amenable number.

1311010225 is a deficient number, since it is larger than the sum of its proper divisors (550725775).

1311010225 is a wasteful number, since it uses less digits than its factorization.

1311010225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15529 (or 15524 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 1311010225 is about 36207.8751793032. The cubic root of 1311010225 is about 1094.4653742885.

Adding to 1311010225 its reverse (5220101131), we get a palindrome (6531111356).

The spelling of 1311010225 in words is "one billion, three hundred eleven million, ten thousand, two hundred twenty-five".