1011031001128 has 8 divisors (see below), whose sum is σ = 1895683127130. Its totient is φ = 505515500560.

The previous prime is 1011031001111. The next prime is 1011031001147. The reversal of 1011031001128 is 8211001301101.

It can be written as a sum of positive squares in only one way, i.e., 876017377764 + 135013623364 = 935958^2 + 367442^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63189437563 + ... + 63189437578.

Almost surely, 2^{1011031001128} is an apocalyptic number.

It is an amenable number.

1011031001128 is a deficient number, since it is larger than the sum of its proper divisors (884652126002).

1011031001128 is a wasteful number, since it uses less digits than its factorization.

1011031001128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126378875147 (or 126378875143 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 19.

Adding to 1011031001128 its reverse (8211001301101), we get a palindrome (9222032302229).

The spelling of 1011031001128 in words is "one trillion, eleven billion, thirty-one million, one thousand, one hundred twenty-eight".