431261661065313 has 16 divisors (see below), whose sum is σ = 619249862033600. Its totient is φ = 265390784835264.

The previous prime is 431261661065299. The next prime is 431261661065357. The reversal of 431261661065313 is 313560166162134.

It is not a de Polignac number, because 431261661065313 - 2⁵ = 431261661065281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (431261661065383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10489963 + ... + 31185936.

It is an arithmetic number, because the mean of its divisors is an integer number (38703116377100).

Almost surely, 2^{431261661065313} is an apocalyptic number.

It is an amenable number.

431261661065313 is a deficient number, since it is larger than the sum of its proper divisors (187988200968287).

431261661065313 is a wasteful number, since it uses less digits than its factorization.

431261661065313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41941248.

The product of its (nonzero) digits is 1399680, while the sum is 48.

The spelling of 431261661065313 in words is "four hundred thirty-one trillion, two hundred sixty-one billion, six hundred sixty-one million, sixty-five thousand, three hundred thirteen".