421203103001 has 4 divisors (see below), whose sum is σ = 434790299904. Its totient is φ = 407615906100.

The previous prime is 421203102997. The next prime is 421203103021. The reversal of 421203103001 is 100301302124.

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.

It is a cyclic number.

It is not a de Polignac number, because 421203103001 - 2² = 421203102997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421203103021) 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, 6793598405 + ... + 6793598466.

It is an arithmetic number, because the mean of its divisors is an integer number (108697574976).

Almost surely, 2^421203103001 is an apocalyptic number.

It is an amenable number.

421203103001 is a deficient number, since it is larger than the sum of its proper divisors (13587196903).

421203103001 is a wasteful number, since it uses less digits than its factorization.

421203103001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13587196902.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 421203103001 its reverse (100301302124), we get a palindrome (521504405125).

The spelling of 421203103001 in words is "four hundred twenty-one billion, two hundred three million, one hundred three thousand, one".