201302231993 has 2 divisors, whose sum is σ = 201302231994. Its totient is φ = 201302231992.

The previous prime is 201302231987. The next prime is 201302232031. The reversal of 201302231993 is 399132203102.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 199775923369 + 1526308624 = 446963^2 + 39068^2 .

It is a cyclic number.

It is not a de Polignac number, because 201302231993 - 2²⁰ = 201301183417 is a prime.

It is not a weakly prime, because it can be changed into another prime (201302231093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100651115996 + 100651115997.

It is an arithmetic number, because the mean of its divisors is an integer number (100651115997).

Almost surely, 2^201302231993 is an apocalyptic number.

It is an amenable number.

201302231993 is a deficient number, since it is larger than the sum of its proper divisors (1).

201302231993 is an equidigital number, since it uses as much as digits as its factorization.

201302231993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 35.

The spelling of 201302231993 in words is "two hundred one billion, three hundred two million, two hundred thirty-one thousand, nine hundred ninety-three".