1011012011 has 4 divisors (see below), whose sum is σ = 1011376272. Its totient is φ = 1010647752.

The previous prime is 1011011999. The next prime is 1011012031. The reversal of 1011012011 is 1102101101.

It is a happy number.

1011012011 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, and also an emirpimes, since its reverse is a distinct semiprime: 1102101101 = 18859 ⋅58439.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1011012011 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1011012011.

It is not an unprimeable number, because it can be changed into a prime (1011012031) 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, 177935 + ... + 183528.

It is an arithmetic number, because the mean of its divisors is an integer number (252844068).

Almost surely, 2^1011012011 is an apocalyptic number.

1011012011 is a deficient number, since it is larger than the sum of its proper divisors (364261).

1011012011 is an equidigital number, since it uses as much as digits as its factorization.

1011012011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364260.

The product of its (nonzero) digits is 2, while the sum is 8.

The square root of 1011012011 is about 31796.4150652239. The cubic root of 1011012011 is about 1003.6572783423.

Adding to 1011012011 its reverse (1102101101), we get a palindrome (2113113112).

The spelling of 1011012011 in words is "one billion, eleven million, twelve thousand, eleven".