51201111110 has 16 divisors (see below), whose sum is σ = 93460057632. Its totient is φ = 20191987200.

The previous prime is 51201111109. The next prime is 51201111113. The reversal of 51201111110 is 1111110215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51201111113) 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, 36056411 + ... + 36057830.

It is an arithmetic number, because the mean of its divisors is an integer number (5841253602).

Almost surely, 2^51201111110 is an apocalyptic number.

51201111110 is a deficient number, since it is larger than the sum of its proper divisors (42258946522).

51201111110 is a wasteful number, since it uses less digits than its factorization.

51201111110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72114319.

The product of its (nonzero) digits is 10, while the sum is 14.

Adding to 51201111110 its reverse (1111110215), we get a palindrome (52312221325).

The spelling of 51201111110 in words is "fifty-one billion, two hundred one million, one hundred eleven thousand, one hundred ten".