1123423548361 has 4 divisors (see below), whose sum is σ = 1123439702272. Its totient is φ = 1123407394452.

The previous prime is 1123423548353. The next prime is 1123423548371. The reversal of 1123423548361 is 1638453243211.

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 1123423548361 - 2³ = 1123423548353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1123423548371) 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, 7972185 + ... + 8111878.

It is an arithmetic number, because the mean of its divisors is an integer number (280859925568).

Almost surely, 2^{1123423548361} is an apocalyptic number.

It is an amenable number.

1123423548361 is a deficient number, since it is larger than the sum of its proper divisors (16153911).

1123423548361 is an equidigital number, since it uses as much as digits as its factorization.

1123423548361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16153910.

The product of its digits is 414720, while the sum is 43.

The spelling of 1123423548361 in words is "one trillion, one hundred twenty-three billion, four hundred twenty-three million, five hundred forty-eight thousand, three hundred sixty-one".