51230300242 has 16 divisors (see below), whose sum is σ = 83857240800. Its totient is φ = 23279322240.

The previous prime is 51230300237. The next prime is 51230300293. The reversal of 51230300242 is 24200303215.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 285567 + ... + 428962.

It is an arithmetic number, because the mean of its divisors is an integer number (5241077550).

Almost surely, 2^51230300242 is an apocalyptic number.

51230300242 is a deficient number, since it is larger than the sum of its proper divisors (32626940558).

51230300242 is a wasteful number, since it uses less digits than its factorization.

51230300242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717801.

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 51230300242 its reverse (24200303215), we get a palindrome (75430603457).

The spelling of 51230300242 in words is "fifty-one billion, two hundred thirty million, three hundred thousand, two hundred forty-two".