1131120103231 has 4 divisors (see below), whose sum is σ = 1131183111672. Its totient is φ = 1131057094792.

The previous prime is 1131120103193. The next prime is 1131120103259. The reversal of 1131120103231 is 1323010211311.

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

It is a cyclic number.

It is not a de Polignac number, because 1131120103231 - 2⁷ = 1131120103103 is a prime.

It is a super-2 number, since 2×1131120103231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1131120103199 and 1131120103208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131120103291) 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, 31477285 + ... + 31513198.

It is an arithmetic number, because the mean of its divisors is an integer number (282795777918).

Almost surely, 2^{1131120103231} is an apocalyptic number.

1131120103231 is a deficient number, since it is larger than the sum of its proper divisors (63008441).

1131120103231 is an equidigital number, since it uses as much as digits as its factorization.

1131120103231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63008440.

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

Adding to 1131120103231 its reverse (1323010211311), we get a palindrome (2454130314542).

The spelling of 1131120103231 in words is "one trillion, one hundred thirty-one billion, one hundred twenty million, one hundred three thousand, two hundred thirty-one".