203300000121 has 4 divisors (see below), whose sum is σ = 271066666832. Its totient is φ = 135533333412.

The previous prime is 203300000069. The next prime is 203300000177. The reversal of 203300000121 is 121000003302.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 203300000121 - 2¹³ = 203299991929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203300000097 and 203300000106.

It is not an unprimeable number, because it can be changed into a prime (203300000821) 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, 33883333351 + ... + 33883333356.

It is an arithmetic number, because the mean of its divisors is an integer number (67766666708).

Almost surely, 2^203300000121 is an apocalyptic number.

It is an amenable number.

203300000121 is a deficient number, since it is larger than the sum of its proper divisors (67766666711).

203300000121 is an equidigital number, since it uses as much as digits as its factorization.

203300000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67766666710.

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 203300000121 its reverse (121000003302), we get a palindrome (324300003423).

The spelling of 203300000121 in words is "two hundred three billion, three hundred million, one hundred twenty-one", and thus it is an aban number.