201001312319993 has 2 divisors, whose sum is σ = 201001312319994. Its totient is φ = 201001312319992.

The previous prime is 201001312319989. The next prime is 201001312320007. The reversal of 201001312319993 is 399913213100102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 157590186501049 + 43411125818944 = 12553493^2 + 6588712^2 .

It is a cyclic number.

It is not a de Polignac number, because 201001312319993 - 2² = 201001312319989 is a prime.

It is not a weakly prime, because it can be changed into another prime (201001312319903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100500656159996 + 100500656159997.

It is an arithmetic number, because the mean of its divisors is an integer number (100500656159997).

Almost surely, 2^{201001312319993} is an apocalyptic number.

It is an amenable number.

201001312319993 is a deficient number, since it is larger than the sum of its proper divisors (1).

201001312319993 is an equidigital number, since it uses as much as digits as its factorization.

201001312319993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 78732, while the sum is 44.

The spelling of 201001312319993 in words is "two hundred one trillion, one billion, three hundred twelve million, three hundred nineteen thousand, nine hundred ninety-three".