1011018282921 has 6 divisors (see below), whose sum is σ = 1460359742010. Its totient is φ = 674012188608.

The previous prime is 1011018282877. The next prime is 1011018282929. The reversal of 1011018282921 is 1292828101101.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 520402089321 + 490616193600 = 721389^2 + 700440^2 .

It is not a de Polignac number, because 1011018282921 - 2⁹ = 1011018282409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1011018282929) 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 5 ways as a sum of consecutive naturals, for example, 56167682376 + ... + 56167682393.

It is an arithmetic number, because the mean of its divisors is an integer number (243393290335).

Almost surely, 2^{1011018282921} is an apocalyptic number.

It is an amenable number.

1011018282921 is a deficient number, since it is larger than the sum of its proper divisors (449341459089).

1011018282921 is a wasteful number, since it uses less digits than its factorization.

1011018282921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112335364775 (or 112335364772 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 36.

The spelling of 1011018282921 in words is "one trillion, eleven billion, eighteen million, two hundred eighty-two thousand, nine hundred twenty-one".