1153202423 has 4 divisors (see below), whose sum is σ = 1180021128. Its totient is φ = 1126383720.

The previous prime is 1153202411. The next prime is 1153202431. The reversal of 1153202423 is 3242023511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3242023511 = 11939 ⋅271549.

It is a cyclic number.

It is not a de Polignac number, because 1153202423 - 2²⁶ = 1086093559 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 (1153202723) 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, 13409288 + ... + 13409373.

It is an arithmetic number, because the mean of its divisors is an integer number (295005282).

Almost surely, 2^1153202423 is an apocalyptic number.

1153202423 is a deficient number, since it is larger than the sum of its proper divisors (26818705).

1153202423 is an equidigital number, since it uses as much as digits as its factorization.

1153202423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26818704.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1153202423 is about 33958.8342408864. The cubic root of 1153202423 is about 1048.6611576807.

Adding to 1153202423 its reverse (3242023511), we get a palindrome (4395225934).

The spelling of 1153202423 in words is "one billion, one hundred fifty-three million, two hundred two thousand, four hundred twenty-three".