1203223032121 has 12 divisors (see below), whose sum is σ = 1323848962800. Its totient is φ = 1092765564440.

The previous prime is 1203223032091. The next prime is 1203223032127. The reversal of 1203223032121 is 1212303223021.

It is not a de Polignac number, because 1203223032121 - 2³⁹ = 653467218233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1203223032092 and 1203223032101.

It is not an unprimeable number, because it can be changed into a prime (1203223032127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4755991 + ... + 5002588.

It is an arithmetic number, because the mean of its divisors is an integer number (110320746900).

Almost surely, 2^{1203223032121} is an apocalyptic number.

1203223032121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1203223032121 is a deficient number, since it is larger than the sum of its proper divisors (120625930679).

1203223032121 is a wasteful number, since it uses less digits than its factorization.

1203223032121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9759620 (or 9759609 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 1203223032121 its reverse (1212303223021), we get a palindrome (2415526255142).

The spelling of 1203223032121 in words is "one trillion, two hundred three billion, two hundred twenty-three million, thirty-two thousand, one hundred twenty-one".