203310344121 has 64 divisors (see below), whose sum is σ = 286789144320. Its totient is φ = 127987200000.

The previous prime is 203310344101. The next prime is 203310344123. The reversal of 203310344121 is 121443013302.

It is a happy number.

It is not a de Polignac number, because 203310344121 - 2¹⁹ = 203309819833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 203310344091 and 203310344100.

It is not an unprimeable number, because it can be changed into a prime (203310344123) 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, 167608911 + ... + 167610123.

It is an arithmetic number, because the mean of its divisors is an integer number (4481080380).

Almost surely, 2^203310344121 is an apocalyptic number.

It is an amenable number.

203310344121 is a deficient number, since it is larger than the sum of its proper divisors (83478800199).

203310344121 is a wasteful number, since it uses less digits than its factorization.

203310344121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1658.

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

Adding to 203310344121 its reverse (121443013302), we get a palindrome (324753357423).

The spelling of 203310344121 in words is "two hundred three billion, three hundred ten million, three hundred forty-four thousand, one hundred twenty-one".