1013511011 has 4 divisors (see below), whose sum is σ = 1013617800. Its totient is φ = 1013404224.

The previous prime is 1013510969. The next prime is 1013511019. The reversal of 1013511011 is 1101153101.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1101153101 = 839 ⋅1312459.

It is a cyclic number.

It is not a de Polignac number, because 1013511011 - 2²⁶ = 946402147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1013511019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37601 + ... + 58658.

It is an arithmetic number, because the mean of its divisors is an integer number (253404450).

Almost surely, 2^1013511011 is an apocalyptic number.

1013511011 is a deficient number, since it is larger than the sum of its proper divisors (106789).

1013511011 is an equidigital number, since it uses as much as digits as its factorization.

1013511011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106788.

The product of its (nonzero) digits is 15, while the sum is 14.

The square root of 1013511011 is about 31835.6876947868. The cubic root of 1013511011 is about 1004.4835381759.

Adding to 1013511011 its reverse (1101153101), we get a palindrome (2114664112).

The spelling of 1013511011 in words is "one billion, thirteen million, five hundred eleven thousand, eleven".