1123130132321 has 8 divisors (see below), whose sum is σ = 1135775464200. Its totient is φ = 1110485376000.

The previous prime is 1123130132287. The next prime is 1123130132387. The reversal of 1123130132321 is 1232310313211.

It can be written as a sum of positive squares in 4 ways, for example, as 193631681296 + 929498451025 = 440036^2 + 964105^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1123130132321 is a prime.

It is a super-2 number, since 2×1123130132321² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1123130132821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4689245 + ... + 4922933.

It is an arithmetic number, because the mean of its divisors is an integer number (141971933025).

Almost surely, 2^{1123130132321} is an apocalyptic number.

It is an amenable number.

1123130132321 is a deficient number, since it is larger than the sum of its proper divisors (12645331879).

1123130132321 is an equidigital number, since it uses as much as digits as its factorization.

1123130132321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287779.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 1123130132321 its reverse (1232310313211), we get a palindrome (2355440445532).

The spelling of 1123130132321 in words is "one trillion, one hundred twenty-three billion, one hundred thirty million, one hundred thirty-two thousand, three hundred twenty-one".