1013511243 has 16 divisors (see below), whose sum is σ = 1452741120. Its totient is φ = 626491296.

The previous prime is 1013511223. The next prime is 1013511269. The reversal of 1013511243 is 3421153101.

It is not a de Polignac number, because 1013511243 - 2¹⁰ = 1013510219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1013511223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186480 + ... + 191837.

It is an arithmetic number, because the mean of its divisors is an integer number (90796320).

Almost surely, 2^1013511243 is an apocalyptic number.

1013511243 is a deficient number, since it is larger than the sum of its proper divisors (439229877).

1013511243 is a wasteful number, since it uses less digits than its factorization.

1013511243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378386.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1013511243 is about 31835.6913384962. The cubic root of 1013511243 is about 1004.4836148204.

Adding to 1013511243 its reverse (3421153101), we get a palindrome (4434664344).

The spelling of 1013511243 in words is "one billion, thirteen million, five hundred eleven thousand, two hundred forty-three".