1013511252 has 96 divisors (see below), whose sum is σ = 2633612800. Its totient is φ = 303129216.

The previous prime is 1013511223. The next prime is 1013511269. The reversal of 1013511252 is 2521153101.

1013511252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 974949 + ... + 975987.

Almost surely, 2^1013511252 is an apocalyptic number.

1013511252 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 1013511252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1316806400).

1013511252 is an abundant number, since it is smaller than the sum of its proper divisors (1620101548).

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

1013511252 is a wasteful number, since it uses less digits than its factorization.

1013511252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122 (or 1094 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 1013511252 is about 31835.6914798470. The cubic root of 1013511252 is about 1004.4836177937.

Adding to 1013511252 its reverse (2521153101), we get a palindrome (3534664353).

The spelling of 1013511252 in words is "one billion, thirteen million, five hundred eleven thousand, two hundred fifty-two".