3201013261 has 2 divisors, whose sum is σ = 3201013262. Its totient is φ = 3201013260.

The previous prime is 3201013259. The next prime is 3201013313. The reversal of 3201013261 is 1623101023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3138128361 + 62884900 = 56019^2 + 7930^2 .

It is a cyclic number.

It is not a de Polignac number, because 3201013261 - 2¹ = 3201013259 is a prime.

Together with 3201013259, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3201023261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1600506630 + 1600506631.

It is an arithmetic number, because the mean of its divisors is an integer number (1600506631).

Almost surely, 2^3201013261 is an apocalyptic number.

It is an amenable number.

3201013261 is a deficient number, since it is larger than the sum of its proper divisors (1).

3201013261 is an equidigital number, since it uses as much as digits as its factorization.

3201013261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 3201013261 is about 56577.4978326189. The cubic root of 3201013261 is about 1473.7681199358.

Adding to 3201013261 its reverse (1623101023), we get a palindrome (4824114284).

The spelling of 3201013261 in words is "three billion, two hundred one million, thirteen thousand, two hundred sixty-one".