1131201303121 has 4 divisors (see below), whose sum is σ = 1133825900544. Its totient is φ = 1128576705700.

The previous prime is 1131201303103. The next prime is 1131201303143. The reversal of 1131201303121 is 1213031021311.

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 1131201303121 - 2¹¹ = 1131201301073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131201343121) 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, 1312298065 + ... + 1312298926.

It is an arithmetic number, because the mean of its divisors is an integer number (283456475136).

Almost surely, 2^{1131201303121} is an apocalyptic number.

It is an amenable number.

1131201303121 is a deficient number, since it is larger than the sum of its proper divisors (2624597423).

1131201303121 is an equidigital number, since it uses as much as digits as its factorization.

1131201303121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2624597422.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 1131201303121 its reverse (1213031021311), we get a palindrome (2344232324432).

The spelling of 1131201303121 in words is "one trillion, one hundred thirty-one billion, two hundred one million, three hundred three thousand, one hundred twenty-one".