1012113100 has 18 divisors (see below), whose sum is σ = 2196285644. Its totient is φ = 404845200.

The previous prime is 1012113097. The next prime is 1012113101. The reversal of 1012113100 is 13112101.

It is a super-2 number, since 2×1012113100² = 2048745854383220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (1012113101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5060466 + ... + 5060665.

Almost surely, 2^1012113100 is an apocalyptic number.

1012113100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012113100 is an abundant number, since it is smaller than the sum of its proper divisors (1184172544).

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

1012113100 is a wasteful number, since it uses less digits than its factorization.

1012113100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10121145 (or 10121138 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 1012113100 is about 31813.7250255295. The cubic root of 1012113100 is about 1004.0215058117.

Adding to 1012113100 its reverse (13112101), we get a palindrome (1025225201).

Subtracting from 1012113100 its reverse (13112101), we obtain a palindrome (999000999).

The spelling of 1012113100 in words is "one billion, twelve million, one hundred thirteen thousand, one hundred".