2021410213993 has 2 divisors, whose sum is σ = 2021410213994. Its totient is φ = 2021410213992.

The previous prime is 2021410213973. The next prime is 2021410214017. The reversal of 2021410213993 is 3993120141202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1795364167744 + 226046046249 = 1339912^2 + 475443^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2021410213993 is a prime.

It is not a weakly prime, because it can be changed into another prime (2021410213913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010705106996 + 1010705106997.

It is an arithmetic number, because the mean of its divisors is an integer number (1010705106997).

Almost surely, 2^{2021410213993} is an apocalyptic number.

It is an amenable number.

2021410213993 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021410213993 is an equidigital number, since it uses as much as digits as its factorization.

2021410213993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 37.

The spelling of 2021410213993 in words is "two trillion, twenty-one billion, four hundred ten million, two hundred thirteen thousand, nine hundred ninety-three".