1013131019 has 4 divisors (see below), whose sum is σ = 1015068696. Its totient is φ = 1011193344.

The previous prime is 1013130971. The next prime is 1013131073. The reversal of 1013131019 is 9101313101.

1013131019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1013131019 - 2²⁴ = 996353803 is a prime.

It is a super-2 number, since 2×1013131019² = 2052868923319956722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1013131079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 968054 + ... + 969099.

It is an arithmetic number, because the mean of its divisors is an integer number (253767174).

Almost surely, 2^1013131019 is an apocalyptic number.

1013131019 is a deficient number, since it is larger than the sum of its proper divisors (1937677).

1013131019 is an equidigital number, since it uses as much as digits as its factorization.

1013131019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1937676.

The product of its (nonzero) digits is 81, while the sum is 20.

The square root of 1013131019 is about 31829.7191159457. The cubic root of 1013131019 is about 1004.3579866963.

The spelling of 1013131019 in words is "one billion, thirteen million, one hundred thirty-one thousand, nineteen".