421241203203 has 16 divisors (see below), whose sum is σ = 575965209600. Its totient is φ = 273761216960.

The previous prime is 421241203189. The next prime is 421241203213. The reversal of 421241203203 is 302302142124.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 421241203203 - 2¹² = 421241199107 is a prime.

It is a super-2 number, since 2×421241203203² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (421241203213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11091483 + ... + 11129396.

It is an arithmetic number, because the mean of its divisors is an integer number (35997825600).

Almost surely, 2^421241203203 is an apocalyptic number.

421241203203 is a deficient number, since it is larger than the sum of its proper divisors (154724006397).

421241203203 is a wasteful number, since it uses less digits than its factorization.

421241203203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22221042.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 421241203203 its reverse (302302142124), we get a palindrome (723543345327).

The spelling of 421241203203 in words is "four hundred twenty-one billion, two hundred forty-one million, two hundred three thousand, two hundred three".