31432211344117 has 2 divisors, whose sum is σ = 31432211344118. Its totient is φ = 31432211344116.

The previous prime is 31432211344087. The next prime is 31432211344141. The reversal of 31432211344117 is 71144311223413.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23117719831921 + 8314491512196 = 4808089^2 + 2883486^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31432211344117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31432811344117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15716105672058 + 15716105672059.

It is an arithmetic number, because the mean of its divisors is an integer number (15716105672059).

Almost surely, 2^{31432211344117} is an apocalyptic number.

It is an amenable number.

31432211344117 is a deficient number, since it is larger than the sum of its proper divisors (1).

31432211344117 is an equidigital number, since it uses as much as digits as its factorization.

31432211344117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 37.

The spelling of 31432211344117 in words is "thirty-one trillion, four hundred thirty-two billion, two hundred eleven million, three hundred forty-four thousand, one hundred seventeen".