3200431261 has 2 divisors, whose sum is σ = 3200431262. Its totient is φ = 3200431260.

The previous prime is 3200431249. The next prime is 3200431309. The reversal of 3200431261 is 1621340023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2620825636 + 579605625 = 51194^2 + 24075^2 .

It is a cyclic number.

It is not a de Polignac number, because 3200431261 - 2¹⁷ = 3200300189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3200431211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1600215630 + 1600215631.

It is an arithmetic number, because the mean of its divisors is an integer number (1600215631).

Almost surely, 2^3200431261 is an apocalyptic number.

It is an amenable number.

3200431261 is a deficient number, since it is larger than the sum of its proper divisors (1).

3200431261 is an equidigital number, since it uses as much as digits as its factorization.

3200431261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 3200431261 is about 56572.3542112223. The cubic root of 3200431261 is about 1473.6787956120.

Adding to 3200431261 its reverse (1621340023), we get a palindrome (4821771284).

The spelling of 3200431261 in words is "three billion, two hundred million, four hundred thirty-one thousand, two hundred sixty-one".