1012133100 has 72 divisors (see below), whose sum is σ = 3194670528. Its totient is φ = 245364800.

The previous prime is 1012133053. The next prime is 1012133107. The reversal of 1012133100 is 13312101.

It is a super-2 number, since 2×1012133100² = 2048826824231220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (1012133107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 150054 + ... + 156653.

It is an arithmetic number, because the mean of its divisors is an integer number (44370424).

Almost surely, 2^1012133100 is an apocalyptic number.

1012133100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012133100 is an abundant number, since it is smaller than the sum of its proper divisors (2182537428).

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

1012133100 is a wasteful number, since it uses less digits than its factorization.

1012133100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306735 (or 306728 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 1012133100 is about 31814.0393537193. The cubic root of 1012133100 is about 1004.0281191365.

Adding to 1012133100 its reverse (13312101), we get a palindrome (1025445201).

The spelling of 1012133100 in words is "one billion, twelve million, one hundred thirty-three thousand, one hundred".