202423319873 has 2 divisors, whose sum is σ = 202423319874. Its totient is φ = 202423319872.

The previous prime is 202423319821. The next prime is 202423319939. The reversal of 202423319873 is 378913324202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 155683906624 + 46739413249 = 394568^2 + 216193^2 .

It is a cyclic number.

It is not a de Polignac number, because 202423319873 - 2¹⁸ = 202423057729 is a prime.

It is a super-2 number, since 2×202423319873² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (202423319473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101211659936 + 101211659937.

It is an arithmetic number, because the mean of its divisors is an integer number (101211659937).

Almost surely, 2^202423319873 is an apocalyptic number.

It is an amenable number.

202423319873 is a deficient number, since it is larger than the sum of its proper divisors (1).

202423319873 is an equidigital number, since it uses as much as digits as its factorization.

202423319873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 44.

The spelling of 202423319873 in words is "two hundred two billion, four hundred twenty-three million, three hundred nineteen thousand, eight hundred seventy-three".