51323353212 has 48 divisors (see below), whose sum is σ = 121242923424. Its totient is φ = 16896000000.

The previous prime is 51323353189. The next prime is 51323353217. The reversal of 51323353212 is 21235332315.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 51323353212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51323353217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 433212 + ... + 538812.

It is an arithmetic number, because the mean of its divisors is an integer number (2525894238).

Almost surely, 2^51323353212 is an apocalyptic number.

It is an amenable number.

51323353212 is an abundant number, since it is smaller than the sum of its proper divisors (69919570212).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51323353212 is a wasteful number, since it uses less digits than its factorization.

51323353212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106110 (or 106108 counting only the distinct ones).

The product of its digits is 16200, while the sum is 30.

Adding to 51323353212 its reverse (21235332315), we get a palindrome (72558685527).

The spelling of 51323353212 in words is "fifty-one billion, three hundred twenty-three million, three hundred fifty-three thousand, two hundred twelve".