203010123320221 has 64 divisors (see below), whose sum is σ = 260495654400000. Its totient is φ = 157426165370880.

The previous prime is 203010123320197. The next prime is 203010123320281. The reversal of 203010123320221 is 122023321010302.

It is not a de Polignac number, because 203010123320221 - 2⁹ = 203010123319709 is a prime.

It is a super-2 number, since 2×203010123320221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203010123320192 and 203010123320201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203010123320281) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 23164645 + ... + 30702133.

It is an arithmetic number, because the mean of its divisors is an integer number (4070244600000).

Almost surely, 2^{203010123320221} is an apocalyptic number.

It is an amenable number.

203010123320221 is a deficient number, since it is larger than the sum of its proper divisors (57485531079779).

203010123320221 is a wasteful number, since it uses less digits than its factorization.

203010123320221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7537707 (or 7537693 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 203010123320221 its reverse (122023321010302), we get a palindrome (325033444330523).

The spelling of 203010123320221 in words is "two hundred three trillion, ten billion, one hundred twenty-three million, three hundred twenty thousand, two hundred twenty-one".