1013203212 has 72 divisors (see below), whose sum is σ = 2743824384. Its totient is φ = 285059808.

The previous prime is 1013203211. The next prime is 1013203231. The reversal of 1013203212 is 2123023101.

It is a junction number, because it is equal to n+sod(n) for n = 1013203191 and 1013203200.

It is not an unprimeable number, because it can be changed into a prime (1013203211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 375733 + ... + 378419.

It is an arithmetic number, because the mean of its divisors is an integer number (38108672).

Almost surely, 2^1013203212 is an apocalyptic number.

1013203212 is a gapful number since it is divisible by the number (12) 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 1013203212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1371912192).

1013203212 is an abundant number, since it is smaller than the sum of its proper divisors (1730621172).

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

1013203212 is a wasteful number, since it uses less digits than its factorization.

1013203212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2835 (or 2766 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1013203212 is about 31830.8531459652. The cubic root of 1013203212 is about 1004.3818420821.

Adding to 1013203212 its reverse (2123023101), we get a palindrome (3136226313).

The spelling of 1013203212 in words is "one billion, thirteen million, two hundred three thousand, two hundred twelve".