1131302123 has 8 divisors (see below), whose sum is σ = 1360965120. Its totient is φ = 918651240.

The previous prime is 1131302087. The next prime is 1131302147. The reversal of 1131302123 is 3212031311.

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 1131302123 - 2⁶ = 1131302059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131302323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4252883 + ... + 4253148.

It is an arithmetic number, because the mean of its divisors is an integer number (170120640).

Almost surely, 2^1131302123 is an apocalyptic number.

1131302123 is a deficient number, since it is larger than the sum of its proper divisors (229662997).

1131302123 is an equidigital number, since it uses as much as digits as its factorization.

1131302123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8506057.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1131302123 is about 33634.8349631747. The cubic root of 1131302123 is about 1041.9803621519.

Adding to 1131302123 its reverse (3212031311), we get a palindrome (4343333434).

The spelling of 1131302123 in words is "one billion, one hundred thirty-one million, three hundred two thousand, one hundred twenty-three".