431061013 has 2 divisors, whose sum is σ = 431061014. Its totient is φ = 431061012.

The previous prime is 431060977. The next prime is 431061041. The reversal of 431061013 is 310160134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 375080689 + 55980324 = 19367^2 + 7482^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-431061013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (431061053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215530506 + 215530507.

It is an arithmetic number, because the mean of its divisors is an integer number (215530507).

Almost surely, 2^431061013 is an apocalyptic number.

It is an amenable number.

431061013 is a deficient number, since it is larger than the sum of its proper divisors (1).

431061013 is an equidigital number, since it uses as much as digits as its factorization.

431061013 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 431061013 is about 20762.0088864252. The cubic root of 431061013 is about 755.4045245320.

The spelling of 431061013 in words is "four hundred thirty-one million, sixty-one thousand, thirteen".