1201224423 has 8 divisors (see below), whose sum is σ = 1830437248. Its totient is φ = 686413944.

The previous prime is 1201224413. The next prime is 1201224433. The reversal of 1201224423 is 3244221021.

It is an interprime number because it is at equal distance from previous prime (1201224413) and next prime (1201224433).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1201224423 - 2⁴ = 1201224407 is a prime.

It is a super-2 number, since 2×1201224423² = 2885880228823365858, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 57201163 = 1201224423 / (1 + 2 + 0 + 1 + 2 + 2 + 4 + 4 + 2 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1201224423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201224413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28600561 + ... + 28600602.

It is an arithmetic number, because the mean of its divisors is an integer number (228804656).

Almost surely, 2^1201224423 is an apocalyptic number.

1201224423 is a deficient number, since it is larger than the sum of its proper divisors (629212825).

1201224423 is an equidigital number, since it uses as much as digits as its factorization.

1201224423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57201173.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1201224423 is about 34658.6846692139. The cubic root of 1201224423 is about 1063.0198750999.

Adding to 1201224423 its reverse (3244221021), we get a palindrome (4445445444).

The spelling of 1201224423 in words is "one billion, two hundred one million, two hundred twenty-four thousand, four hundred twenty-three".