3261012251 has 16 divisors (see below), whose sum is σ = 3770350080. Its totient is φ = 2762622720.

The previous prime is 3261012247. The next prime is 3261012253. The reversal of 3261012251 is 1522101623.

3261012251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 3261012251 - 2² = 3261012247 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3261012253) 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, 580466 + ... + 586056.

It is an arithmetic number, because the mean of its divisors is an integer number (235646880).

Almost surely, 2^3261012251 is an apocalyptic number.

3261012251 is a deficient number, since it is larger than the sum of its proper divisors (509337829).

3261012251 is an equidigital number, since it uses as much as digits as its factorization.

3261012251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6554.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 3261012251 is about 57105.2734079787. The cubic root of 3261012251 is about 1482.9191609844.

Adding to 3261012251 its reverse (1522101623), we get a palindrome (4783113874).

The spelling of 3261012251 in words is "three billion, two hundred sixty-one million, twelve thousand, two hundred fifty-one".