51213303251110 has 128 divisors (see below), whose sum is σ = 123782911257600. Its totient is φ = 14733332421120.

The previous prime is 51213303251051. The next prime is 51213303251113. The reversal of 51213303251110 is 1115230331215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51213303251113) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 110469276 + ... + 110931904.

It is an arithmetic number, because the mean of its divisors is an integer number (967053994200).

Almost surely, 2^{51213303251110} is an apocalyptic number.

51213303251110 is an abundant number, since it is smaller than the sum of its proper divisors (72569608006490).

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

51213303251110 is a wasteful number, since it uses less digits than its factorization.

51213303251110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473726.

The product of its (nonzero) digits is 2700, while the sum is 28.

Adding to 51213303251110 its reverse (1115230331215), we get a palindrome (52328533582325).

The spelling of 51213303251110 in words is "fifty-one trillion, two hundred thirteen billion, three hundred three million, two hundred fifty-one thousand, one hundred ten".