1131203302121 has 8 divisors (see below), whose sum is σ = 1197760079880. Its totient is φ = 1064648236288.

The previous prime is 1131203302063. The next prime is 1131203302129. The reversal of 1131203302121 is 1212033021311.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 293694628096 + 837508674025 = 541936^2 + 915155^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1131203302121 - 2³⁴ = 1114023432937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1131203302093 and 1131203302102.

It is not an unprimeable number, because it can be changed into a prime (1131203302129) 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 7 ways as a sum of consecutive naturals, for example, 1085375 + ... + 1854843.

It is an arithmetic number, because the mean of its divisors is an integer number (149720009985).

Almost surely, 2^{1131203302121} is an apocalyptic number.

It is an amenable number.

1131203302121 is a deficient number, since it is larger than the sum of its proper divisors (66556777759).

1131203302121 is an equidigital number, since it uses as much as digits as its factorization.

1131203302121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855963.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1131203302121 its reverse (1212033021311), we get a palindrome (2343236323432).

The spelling of 1131203302121 in words is "one trillion, one hundred thirty-one billion, two hundred three million, three hundred two thousand, one hundred twenty-one".