1193449281023 has 4 divisors (see below), whose sum is σ = 1193717055120. Its totient is φ = 1193181506928.

The previous prime is 1193449281019. The next prime is 1193449281029. The reversal of 1193449281023 is 3201829443911.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1193449281023 - 2² = 1193449281019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1193449281029) 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, 133880363 + ... + 133889276.

It is an arithmetic number, because the mean of its divisors is an integer number (298429263780).

Almost surely, 2^{1193449281023} is an apocalyptic number.

1193449281023 is a deficient number, since it is larger than the sum of its proper divisors (267774097).

1193449281023 is an equidigital number, since it uses as much as digits as its factorization.

1193449281023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267774096.

The product of its (nonzero) digits is 373248, while the sum is 47.

The spelling of 1193449281023 in words is "one trillion, one hundred ninety-three billion, four hundred forty-nine million, two hundred eighty-one thousand, twenty-three".