51111045201 has 16 divisors (see below), whose sum is σ = 68684184000. Its totient is φ = 33806493888.

The previous prime is 51111045199. The next prime is 51111045217. The reversal of 51111045201 is 10254011115.

51111045201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51111045201 - 2¹ = 51111045199 is a prime.

It is a super-2 number, since 2×51111045201² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51113045201) 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, 326830 + ... + 457208.

It is an arithmetic number, because the mean of its divisors is an integer number (4292761500).

Almost surely, 2^51111045201 is an apocalyptic number.

It is an amenable number.

51111045201 is a deficient number, since it is larger than the sum of its proper divisors (17573138799).

51111045201 is a wasteful number, since it uses less digits than its factorization.

51111045201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131408.

The product of its (nonzero) digits is 200, while the sum is 21.

Adding to 51111045201 its reverse (10254011115), we get a palindrome (61365056316).

The spelling of 51111045201 in words is "fifty-one billion, one hundred eleven million, forty-five thousand, two hundred one".