1012403200 has 132 divisors (see below), whose sum is σ = 2549448432. Its totient is φ = 398540800.

The previous prime is 1012403143. The next prime is 1012403209. The reversal of 1012403200 is 23042101.

It is not an unprimeable number, because it can be changed into a prime (1012403209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1817322 + ... + 1817878.

Almost surely, 2^1012403200 is an apocalyptic number.

1012403200 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 1012403200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1274724216).

1012403200 is an abundant number, since it is smaller than the sum of its proper divisors (1537045232).

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

1012403200 is an equidigital number, since it uses as much as digits as its factorization.

1012403200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658 (or 635 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1012403200 is about 31818.2840517838. The cubic root of 1012403200 is about 1004.1174235555.

Adding to 1012403200 its reverse (23042101), we get a palindrome (1035445301).

The spelling of 1012403200 in words is "one billion, twelve million, four hundred three thousand, two hundred".