10203230220121 has 4 divisors (see below), whose sum is σ = 10235828400052. Its totient is φ = 10170632040192.

The previous prime is 10203230220067. The next prime is 10203230220173. The reversal of 10203230220121 is 12102203230201.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2590796064025 + 7612434156096 = 1609595^2 + 2759064^2 .

It is a cyclic number.

It is not a de Polignac number, because 10203230220121 - 2⁷ = 10203230219993 is a prime.

It is a super-2 number, since 2×10203230220121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10203230230121) 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, 16299089496 + ... + 16299090121.

It is an arithmetic number, because the mean of its divisors is an integer number (2558957100013).

Almost surely, 2^{10203230220121} is an apocalyptic number.

It is an amenable number.

10203230220121 is a deficient number, since it is larger than the sum of its proper divisors (32598179931).

10203230220121 is an equidigital number, since it uses as much as digits as its factorization.

10203230220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32598179930.

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

Adding to 10203230220121 its reverse (12102203230201), we get a palindrome (22305433450322).

The spelling of 10203230220121 in words is "ten trillion, two hundred three billion, two hundred thirty million, two hundred twenty thousand, one hundred twenty-one".