5311111100 has 72 divisors (see below), whose sum is σ = 12220624080. Its totient is φ = 1996600320.

The previous prime is 5311111067. The next prime is 5311111129. The reversal of 5311111100 is 11111135.

It is a super-2 number, since 2×5311111100² = 56415802233086420000, which contains 22 as substring.

It is a nialpdrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1458482 + ... + 1462118.

It is an arithmetic number, because the mean of its divisors is an integer number (169730890).

Almost surely, 2^5311111100 is an apocalyptic number.

5311111100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5311111100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6110312040).

5311111100 is an abundant number, since it is smaller than the sum of its proper divisors (6909512980).

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

5311111100 is a wasteful number, since it uses less digits than its factorization.

5311111100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4527 (or 4520 counting only the distinct ones).

The product of its (nonzero) digits is 15, while the sum is 14.

The square root of 5311111100 is about 72877.3702873533. The cubic root of 5311111100 is about 1744.7309377355.

Adding to 5311111100 its reverse (11111135), we get a palindrome (5322222235).

The spelling of 5311111100 in words is "five billion, three hundred eleven million, one hundred eleven thousand, one hundred".