31664240332001 has 2 divisors, whose sum is σ = 31664240332002. Its totient is φ = 31664240332000.

The previous prime is 31664240331989. The next prime is 31664240332079. The reversal of 31664240332001 is 10023304246613.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22818047526976 + 8846192805025 = 4776824^2 + 2974255^2 .

It is a cyclic number.

It is not a de Polignac number, because 31664240332001 - 2¹⁰ = 31664240330977 is a prime.

It is not a weakly prime, because it can be changed into another prime (31664240332201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15832120166000 + 15832120166001.

It is an arithmetic number, because the mean of its divisors is an integer number (15832120166001).

Almost surely, 2^{31664240332001} is an apocalyptic number.

It is an amenable number.

31664240332001 is a deficient number, since it is larger than the sum of its proper divisors (1).

31664240332001 is an equidigital number, since it uses as much as digits as its factorization.

31664240332001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 35.

Adding to 31664240332001 its reverse (10023304246613), we get a palindrome (41687544578614).

The spelling of 31664240332001 in words is "thirty-one trillion, six hundred sixty-four billion, two hundred forty million, three hundred thirty-two thousand, one".