1012332100 has 36 divisors (see below), whose sum is σ = 2365745284. Its totient is φ = 373783680.

The previous prime is 1012332091. The next prime is 1012332121. The reversal of 1012332100 is 12332101.

It can be written as a sum of positive squares in 6 ways, for example, as 53934336 + 958397764 = 7344^2 + 30958^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 388059 + ... + 390658.

Almost surely, 2^1012332100 is an apocalyptic number.

1012332100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012332100 is an abundant number, since it is smaller than the sum of its proper divisors (1353413184).

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

1012332100 is a wasteful number, since it uses less digits than its factorization.

1012332100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778744 (or 778737 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1012332100 is about 31817.1667500423. The cubic root of 1012332100 is about 1004.0939169723.

Adding to 1012332100 its reverse (12332101), we get a palindrome (1024664201).

Subtracting from 1012332100 its reverse (12332101), we obtain a palindrome (999999999).

The spelling of 1012332100 in words is "one billion, twelve million, three hundred thirty-two thousand, one hundred".