2001446031997 has 2 divisors, whose sum is σ = 2001446031998. Its totient is φ = 2001446031996.

The previous prime is 2001446031961. The next prime is 2001446032009. The reversal of 2001446031997 is 7991306441002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1217195866756 + 784250165241 = 1103266^2 + 885579^2 .

It is a cyclic number.

It is not a de Polignac number, because 2001446031997 - 2³¹ = 1999298548349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2001446031097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000723015998 + 1000723015999.

It is an arithmetic number, because the mean of its divisors is an integer number (1000723015999).

Almost surely, 2^{2001446031997} is an apocalyptic number.

It is an amenable number.

2001446031997 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001446031997 is an equidigital number, since it uses as much as digits as its factorization.

2001446031997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 46.

The spelling of 2001446031997 in words is "two trillion, one billion, four hundred forty-six million, thirty-one thousand, nine hundred ninety-seven".