1131433123 has 8 divisors (see below), whose sum is σ = 1145590992. Its totient is φ = 1117326336.

The previous prime is 1131433117. The next prime is 1131433169. The reversal of 1131433123 is 3213341311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1131433123 - 2²¹ = 1129335971 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1131433094 and 1131433103.

It is not an unprimeable number, because it can be changed into a prime (1131433423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32811 + ... + 57787.

It is an arithmetic number, because the mean of its divisors is an integer number (143198874).

Almost surely, 2^1131433123 is an apocalyptic number.

1131433123 is a deficient number, since it is larger than the sum of its proper divisors (14157869).

1131433123 is an equidigital number, since it uses as much as digits as its factorization.

1131433123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25541.

The product of its digits is 648, while the sum is 22.

The square root of 1131433123 is about 33636.7822926034. The cubic root of 1131433123 is about 1042.0205795723.

Adding to 1131433123 its reverse (3213341311), we get a palindrome (4344774434).

The spelling of 1131433123 in words is "one billion, one hundred thirty-one million, four hundred thirty-three thousand, one hundred twenty-three".