4431215132117 has 2 divisors, whose sum is σ = 4431215132118. Its totient is φ = 4431215132116.

The previous prime is 4431215132107. The next prime is 4431215132129. The reversal of 4431215132117 is 7112315121344.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4413734590321 + 17480541796 = 2100889^2 + 132214^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4431215132117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4431215132107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2215607566058 + 2215607566059.

It is an arithmetic number, because the mean of its divisors is an integer number (2215607566059).

Almost surely, 2^{4431215132117} is an apocalyptic number.

It is an amenable number.

4431215132117 is a deficient number, since it is larger than the sum of its proper divisors (1).

4431215132117 is an equidigital number, since it uses as much as digits as its factorization.

4431215132117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 35.

The spelling of 4431215132117 in words is "four trillion, four hundred thirty-one billion, two hundred fifteen million, one hundred thirty-two thousand, one hundred seventeen".