1111013100 has 216 divisors, whose sum is σ = 3582895680. Its totient is φ = 287879040.

The previous prime is 1111013089. The next prime is 1111013117. The reversal of 1111013100 is 13101111.

It is a super-2 number, since 2×1111013100² = 2468700216743220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 7992831 + ... + 7992969.

It is an arithmetic number, because the mean of its divisors is an integer number (16587480).

Almost surely, 2^1111013100 is an apocalyptic number.

1111013100 is a gapful number since it is divisible by the number (10) 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 1111013100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1791447840).

1111013100 is an abundant number, since it is smaller than the sum of its proper divisors (2471882580).

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

1111013100 is a wasteful number, since it uses less digits than its factorization.

1111013100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349 (or 339 counting only the distinct ones).

The product of its (nonzero) digits is 3, while the sum is 9.

The square root of 1111013100 is about 33331.8631342444. The cubic root of 1111013100 is about 1035.7137134247.

Adding to 1111013100 its reverse (13101111), we get a palindrome (1124114211).

The spelling of 1111013100 in words is "one billion, one hundred eleven million, thirteen thousand, one hundred".