203323214121 has 16 divisors (see below), whose sum is σ = 272495773440. Its totient is φ = 134851283280.

The previous prime is 203323214041. The next prime is 203323214131. The reversal of 203323214121 is 121412323302.

It is not a de Polignac number, because 203323214121 - 2¹⁵ = 203323181353 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 203323214091 and 203323214100.

It is not an unprimeable number, because it can be changed into a prime (203323214131) 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, 332086 + ... + 718976.

It is an arithmetic number, because the mean of its divisors is an integer number (17030985840).

Almost surely, 2^203323214121 is an apocalyptic number.

It is an amenable number.

203323214121 is a deficient number, since it is larger than the sum of its proper divisors (69172559319).

203323214121 is a wasteful number, since it uses less digits than its factorization.

203323214121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387796.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 203323214121 its reverse (121412323302), we get a palindrome (324735537423).

The spelling of 203323214121 in words is "two hundred three billion, three hundred twenty-three million, two hundred fourteen thousand, one hundred twenty-one".