1131123333031 has 4 divisors (see below), whose sum is σ = 1131856402192. Its totient is φ = 1130390263872.

The previous prime is 1131123333001. The next prime is 1131123333047. The reversal of 1131123333031 is 1303333211311.

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 1131123333031 - 2⁹ = 1131123332519 is a prime.

It is a super-2 number, since 2×1131123333031² (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 = 1131123332987 and 1131123333005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131123333001) 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, 366532266 + ... + 366535351.

It is an arithmetic number, because the mean of its divisors is an integer number (282964100548).

Almost surely, 2^{1131123333031} is an apocalyptic number.

1131123333031 is a deficient number, since it is larger than the sum of its proper divisors (733069161).

1131123333031 is an equidigital number, since it uses as much as digits as its factorization.

1131123333031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733069160.

The product of its (nonzero) digits is 1458, while the sum is 25.

Adding to 1131123333031 its reverse (1303333211311), we get a palindrome (2434456544342).

The spelling of 1131123333031 in words is "one trillion, one hundred thirty-one billion, one hundred twenty-three million, three hundred thirty-three thousand, thirty-one".