1201013423 has 4 divisors (see below), whose sum is σ = 1201858848. Its totient is φ = 1200168000.

The previous prime is 1201013417. The next prime is 1201013431. The reversal of 1201013423 is 3243101021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3243101021 = 4519 ⋅717659.

It is a cyclic number.

It is not a de Polignac number, because 1201013423 - 2¹⁰ = 1201012399 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 (1201013483) 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, 420578 + ... + 423423.

It is an arithmetic number, because the mean of its divisors is an integer number (300464712).

Almost surely, 2^1201013423 is an apocalyptic number.

1201013423 is a deficient number, since it is larger than the sum of its proper divisors (845425).

1201013423 is an equidigital number, since it uses as much as digits as its factorization.

1201013423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845424.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1201013423 is about 34655.6405654260. The cubic root of 1201013423 is about 1062.9576301873.

Adding to 1201013423 its reverse (3243101021), we get a palindrome (4444114444).

The spelling of 1201013423 in words is "one billion, two hundred one million, thirteen thousand, four hundred twenty-three".