51241213203 has 8 divisors (see below), whose sum is σ = 69910492608. Its totient is φ = 33366371304.

The previous prime is 51241213181. The next prime is 51241213207. The reversal of 51241213203 is 30231214215.

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

It is not a de Polignac number, because 51241213203 - 2²⁵ = 51207658771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51241213207) 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, 198609225 + ... + 198609482.

It is an arithmetic number, because the mean of its divisors is an integer number (8738811576).

Almost surely, 2^51241213203 is an apocalyptic number.

51241213203 is a deficient number, since it is larger than the sum of its proper divisors (18669279405).

51241213203 is a wasteful number, since it uses less digits than its factorization.

51241213203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397218753.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 51241213203 its reverse (30231214215), we get a palindrome (81472427418).

The spelling of 51241213203 in words is "fifty-one billion, two hundred forty-one million, two hundred thirteen thousand, two hundred three".