1265030211 has 16 divisors (see below), whose sum is σ = 1696439808. Its totient is φ = 838500000.

The previous prime is 1265030209. The next prime is 1265030219. The reversal of 1265030211 is 1120305621.

It is not a de Polignac number, because 1265030211 - 2¹ = 1265030209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1265030219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 564385 + ... + 566621.

It is an arithmetic number, because the mean of its divisors is an integer number (106027488).

Almost surely, 2^1265030211 is an apocalyptic number.

1265030211 is a deficient number, since it is larger than the sum of its proper divisors (431409597).

1265030211 is a wasteful number, since it uses less digits than its factorization.

1265030211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3242.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1265030211 is about 35567.2631924358. The cubic root of 1265030211 is about 1081.5177024523.

Adding to 1265030211 its reverse (1120305621), we get a palindrome (2385335832).

The spelling of 1265030211 in words is "one billion, two hundred sixty-five million, thirty thousand, two hundred eleven".