1123203132321 has 4 divisors (see below), whose sum is σ = 1497604176432. Its totient is φ = 748802088212.

The previous prime is 1123203132301. The next prime is 1123203132329. The reversal of 1123203132321 is 1232313023211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1123203132321 - 2¹⁵ = 1123203099553 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1123203132291 and 1123203132300.

It is not an unprimeable number, because it can be changed into a prime (1123203132329) 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, 187200522051 + ... + 187200522056.

It is an arithmetic number, because the mean of its divisors is an integer number (374401044108).

Almost surely, 2^{1123203132321} is an apocalyptic number.

It is an amenable number.

1123203132321 is a deficient number, since it is larger than the sum of its proper divisors (374401044111).

1123203132321 is an equidigital number, since it uses as much as digits as its factorization.

1123203132321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374401044110.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 1123203132321 its reverse (1232313023211), we get a palindrome (2355516155532).

The spelling of 1123203132321 in words is "one trillion, one hundred twenty-three billion, two hundred three million, one hundred thirty-two thousand, three hundred twenty-one".