1201425213 has 4 divisors (see below), whose sum is σ = 1601900288. Its totient is φ = 800950140.

The previous prime is 1201425191. The next prime is 1201425259. The reversal of 1201425213 is 3125241021.

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 not a de Polignac number, because 1201425213 - 2⁶ = 1201425149 is a prime.

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 1201425213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201425283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200237533 + ... + 200237538.

It is an arithmetic number, because the mean of its divisors is an integer number (400475072).

Almost surely, 2^1201425213 is an apocalyptic number.

It is an amenable number.

1201425213 is a deficient number, since it is larger than the sum of its proper divisors (400475075).

1201425213 is an equidigital number, since it uses as much as digits as its factorization.

1201425213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400475074.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1201425213 is about 34661.5812247508. The cubic root of 1201425213 is about 1063.0791012986.

Adding to 1201425213 its reverse (3125241021), we get a palindrome (4326666234).

The spelling of 1201425213 in words is "one billion, two hundred one million, four hundred twenty-five thousand, two hundred thirteen".