1132120111231 has 4 divisors (see below), whose sum is σ = 1149017426392. Its totient is φ = 1115222796072.

The previous prime is 1132120111223. The next prime is 1132120111267. The reversal of 1132120111231 is 1321110212311.

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 1132120111231 - 2³ = 1132120111223 is a prime.

It is a super-2 number, since 2×1132120111231² (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 = 1132120111199 and 1132120111208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1132120111211) 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, 8448657480 + ... + 8448657613.

It is an arithmetic number, because the mean of its divisors is an integer number (287254356598).

Almost surely, 2^{1132120111231} is an apocalyptic number.

1132120111231 is a deficient number, since it is larger than the sum of its proper divisors (16897315161).

1132120111231 is an equidigital number, since it uses as much as digits as its factorization.

1132120111231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16897315160.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 1132120111231 its reverse (1321110212311), we get a palindrome (2453230323542).

The spelling of 1132120111231 in words is "one trillion, one hundred thirty-two billion, one hundred twenty million, one hundred eleven thousand, two hundred thirty-one".