1203103302121 has 4 divisors (see below), whose sum is σ = 1374975202432. Its totient is φ = 1031231401812.

The previous prime is 1203103302091. The next prime is 1203103302223. The reversal of 1203103302121 is 1212033013021.

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 a cyclic number.

It is not a de Polignac number, because 1203103302121 - 2¹⁵ = 1203103269353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1203103302421) 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, 85935950145 + ... + 85935950158.

It is an arithmetic number, because the mean of its divisors is an integer number (343743800608).

Almost surely, 2^{1203103302121} is an apocalyptic number.

It is an amenable number.

1203103302121 is a deficient number, since it is larger than the sum of its proper divisors (171871900311).

1203103302121 is an equidigital number, since it uses as much as digits as its factorization.

1203103302121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171871900310.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1203103302121 its reverse (1212033013021), we get a palindrome (2415136315142).

The spelling of 1203103302121 in words is "one trillion, two hundred three billion, one hundred three million, three hundred two thousand, one hundred twenty-one".