202400223401 has 4 divisors (see below), whose sum is σ = 202401419904. Its totient is φ = 202399026900.

The previous prime is 202400223397. The next prime is 202400223407. The reversal of 202400223401 is 104322004202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 202400223401 - 2² = 202400223397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202400223407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 292385 + ... + 700206.

It is an arithmetic number, because the mean of its divisors is an integer number (50600354976).

Almost surely, 2^202400223401 is an apocalyptic number.

It is an amenable number.

202400223401 is a deficient number, since it is larger than the sum of its proper divisors (1196503).

202400223401 is an equidigital number, since it uses as much as digits as its factorization.

202400223401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1196502.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 202400223401 its reverse (104322004202), we get a palindrome (306722227603).

The spelling of 202400223401 in words is "two hundred two billion, four hundred million, two hundred twenty-three thousand, four hundred one".