202421310103 has 4 divisors (see below), whose sum is σ = 207892156360. Its totient is φ = 196950463848.

The previous prime is 202421310083. The next prime is 202421310137. The reversal of 202421310103 is 301013124202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 202421310103 - 2⁵ = 202421310071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202421710103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2735423073 + ... + 2735423146.

It is an arithmetic number, because the mean of its divisors is an integer number (51973039090).

Almost surely, 2^202421310103 is an apocalyptic number.

202421310103 is a deficient number, since it is larger than the sum of its proper divisors (5470846257).

202421310103 is an equidigital number, since it uses as much as digits as its factorization.

202421310103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5470846256.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 202421310103 its reverse (301013124202), we get a palindrome (503434434305).

The spelling of 202421310103 in words is "two hundred two billion, four hundred twenty-one million, three hundred ten thousand, one hundred three".