1011331011 has 16 divisors (see below), whose sum is σ = 1393571840. Its totient is φ = 651706560.

The previous prime is 1011330979. The next prime is 1011331019. The reversal of 1011331011 is 1101331101.

It is not a de Polignac number, because 1011331011 - 2⁵ = 1011330979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011331019) 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, 79551 + ... + 91383.

It is an arithmetic number, because the mean of its divisors is an integer number (87098240).

Almost surely, 2^1011331011 is an apocalyptic number.

1011331011 is a deficient number, since it is larger than the sum of its proper divisors (382240829).

1011331011 is a wasteful number, since it uses less digits than its factorization.

1011331011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12786.

The product of its (nonzero) digits is 9, while the sum is 12.

The square root of 1011331011 is about 31801.4309583704. The cubic root of 1011331011 is about 1003.7628270402.

Adding to 1011331011 its reverse (1101331101), we get a palindrome (2112662112).

The spelling of 1011331011 in words is "one billion, eleven million, three hundred thirty-one thousand, eleven".