1203230203121 has 16 divisors (see below), whose sum is σ = 1240721347008. Its totient is φ = 1166204390400.

The previous prime is 1203230203073. The next prime is 1203230203171. The reversal of 1203230203121 is 1213020323021.

It is a cyclic number.

It is not a de Polignac number, because 1203230203121 - 2⁶ = 1203230203057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1203230203093 and 1203230203102.

It is not an unprimeable number, because it can be changed into a prime (1203230203171) 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, 2860841 + ... + 3254361.

It is an arithmetic number, because the mean of its divisors is an integer number (77545084188).

Almost surely, 2^{1203230203121} is an apocalyptic number.

It is an amenable number.

1203230203121 is a deficient number, since it is larger than the sum of its proper divisors (37491143887).

1203230203121 is a wasteful number, since it uses less digits than its factorization.

1203230203121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394112.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1203230203121 its reverse (1213020323021), we get a palindrome (2416250526142).

The spelling of 1203230203121 in words is "one trillion, two hundred three billion, two hundred thirty million, two hundred three thousand, one hundred twenty-one".