1012130100 has 216 divisors, whose sum is σ = 3350063360. Its totient is φ = 262137600.

The previous prime is 1012130083. The next prime is 1012130113. The reversal of 1012130100 is 10312101.

1012130100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

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, 4538589 + ... + 4538811.

Almost surely, 2^1012130100 is an apocalyptic number.

1012130100 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 1012130100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1675031680).

1012130100 is an abundant number, since it is smaller than the sum of its proper divisors (2337933260).

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

1012130100 is a wasteful number, since it uses less digits than its factorization.

1012130100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328 (or 274 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 1012130100 is about 31813.9922046888. The cubic root of 1012130100 is about 1004.0271271433.

Adding to 1012130100 its reverse (10312101), we get a palindrome (1022442201).

The spelling of 1012130100 in words is "one billion, twelve million, one hundred thirty thousand, one hundred".