51111354303 has 12 divisors (see below), whose sum is σ = 74202273288. Its totient is φ = 33901269360.

The previous prime is 51111354271. The next prime is 51111354337. The reversal of 51111354303 is 30345311115.

It is a happy number.

51111354303 is a `hidden beast` number, since 5 + 1 + 1 + 1 + 1 + 354 + 303 = 666.

It is not a de Polignac number, because 51111354303 - 2⁵ = 51111354271 is a prime.

It is a super-2 number, since 2×51111354303² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51111354353) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14412033 + ... + 14415578.

It is an arithmetic number, because the mean of its divisors is an integer number (6183522774).

Almost surely, 2^51111354303 is an apocalyptic number.

51111354303 is a deficient number, since it is larger than the sum of its proper divisors (23090918985).

51111354303 is a wasteful number, since it uses less digits than its factorization.

51111354303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28827814 (or 28827811 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

Adding to 51111354303 its reverse (30345311115), we get a palindrome (81456665418).

The spelling of 51111354303 in words is "fifty-one billion, one hundred eleven million, three hundred fifty-four thousand, three hundred three".