203310103320121 has 16 divisors (see below), whose sum is σ = 232938161445888. Its totient is φ = 173828184800400.

The previous prime is 203310103320119. The next prime is 203310103320127. The reversal of 203310103320121 is 121023301013302.

It is a cyclic number.

It is not a de Polignac number, because 203310103320121 - 2¹ = 203310103320119 is a prime.

It is a super-2 number, since 2×203310103320121² (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 = 203310103320092 and 203310103320101.

It is not an unprimeable number, because it can be changed into a prime (203310103320127) 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, 3850836 + ... + 20529226.

It is an arithmetic number, because the mean of its divisors is an integer number (14558635090368).

Almost surely, 2^{203310103320121} is an apocalyptic number.

It is an amenable number.

203310103320121 is a deficient number, since it is larger than the sum of its proper divisors (29628058125767).

203310103320121 is a wasteful number, since it uses less digits than its factorization.

203310103320121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16682772.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 203310103320121 its reverse (121023301013302), we get a palindrome (324333404333423).

The spelling of 203310103320121 in words is "two hundred three trillion, three hundred ten billion, one hundred three million, three hundred twenty thousand, one hundred twenty-one".