1131245231353 has 4 divisors (see below), whose sum is σ = 1143955852020. Its totient is φ = 1118534610688.

The previous prime is 1131245231341. The next prime is 1131245231393. The reversal of 1131245231353 is 3531325421311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 793966538304 + 337278693049 = 891048^2 + 580757^2 .

It is a cyclic number.

It is not a de Polignac number, because 1131245231353 - 2¹³ = 1131245223161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131245231393) 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, 6355310200 + ... + 6355310377.

It is an arithmetic number, because the mean of its divisors is an integer number (285988963005).

Almost surely, 2^{1131245231353} is an apocalyptic number.

It is an amenable number.

1131245231353 is a deficient number, since it is larger than the sum of its proper divisors (12710620667).

1131245231353 is an equidigital number, since it uses as much as digits as its factorization.

1131245231353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12710620666.

The product of its digits is 32400, while the sum is 34.

The spelling of 1131245231353 in words is "one trillion, one hundred thirty-one billion, two hundred forty-five million, two hundred thirty-one thousand, three hundred fifty-three".