1011231031011 has 8 divisors (see below), whose sum is σ = 1348455708240. Its totient is φ = 674080187232.

The previous prime is 1011231030991. The next prime is 1011231031033. The reversal of 1011231031011 is 1101301321101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1011231031011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1011231031061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18426396 + ... + 18481193.

It is an arithmetic number, because the mean of its divisors is an integer number (168556963530).

Almost surely, 2^{1011231031011} is an apocalyptic number.

1011231031011 is a deficient number, since it is larger than the sum of its proper divisors (337224677229).

1011231031011 is an equidigital number, since it uses as much as digits as its factorization.

1011231031011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36916725.

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 1011231031011 its reverse (1101301321101), we get a palindrome (2112532352112).

The spelling of 1011231031011 in words is "one trillion, eleven billion, two hundred thirty-one million, thirty-one thousand, eleven".