1013031011 has 4 divisors (see below), whose sum is σ = 1013096112. Its totient is φ = 1012965912.

The previous prime is 1013031007. The next prime is 1013031013. The reversal of 1013031011 is 1101303101.

It is a happy number.

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: 1101303101 = 29 ⋅37975969.

It is a cyclic number.

It is not a de Polignac number, because 1013031011 - 2² = 1013031007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1013030983 and 1013031001.

It is not an unprimeable number, because it can be changed into a prime (1013031013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6050 + ... + 45416.

It is an arithmetic number, because the mean of its divisors is an integer number (253274028).

Almost surely, 2^1013031011 is an apocalyptic number.

1013031011 is a deficient number, since it is larger than the sum of its proper divisors (65101).

1013031011 is an equidigital number, since it uses as much as digits as its factorization.

1013031011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65100.

The product of its (nonzero) digits is 9, while the sum is 11.

The square root of 1013031011 is about 31828.1480925297. The cubic root of 1013031011 is about 1004.3249382761.

Adding to 1013031011 its reverse (1101303101), we get a palindrome (2114334112).

The spelling of 1013031011 in words is "one billion, thirteen million, thirty-one thousand, eleven".