210199973351 has 2 divisors, whose sum is σ = 210199973352. Its totient is φ = 210199973350.

The previous prime is 210199973311. The next prime is 210199973359. The reversal of 210199973351 is 153379991012.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210199973351 is a prime.

It is a super-2 number, since 2×210199973351² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 210199973351.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210199973359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105099986675 + 105099986676.

It is an arithmetic number, because the mean of its divisors is an integer number (105099986676).

Almost surely, 2^210199973351 is an apocalyptic number.

210199973351 is a deficient number, since it is larger than the sum of its proper divisors (1).

210199973351 is an equidigital number, since it uses as much as digits as its factorization.

210199973351 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 459270, while the sum is 50.

The spelling of 210199973351 in words is "two hundred ten billion, one hundred ninety-nine million, nine hundred seventy-three thousand, three hundred fifty-one".