1021041420044 has 6 divisors (see below), whose sum is σ = 1786822485084. Its totient is φ = 510520710020.

The previous prime is 1021041420043. The next prime is 1021041420101. The reversal of 1021041420044 is 4400241401201.

It is a super-3 number, since 3×1021041420044³ (a number of 37 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1021041420043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127630177502 + ... + 127630177509.

It is an arithmetic number, because the mean of its divisors is an integer number (297803747514).

Almost surely, 2^{1021041420044} is an apocalyptic number.

It is an amenable number.

1021041420044 is a deficient number, since it is larger than the sum of its proper divisors (765781065040).

1021041420044 is a wasteful number, since it uses less digits than its factorization.

1021041420044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255260355015 (or 255260355013 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 1021041420044 its reverse (4400241401201), we get a palindrome (5421282821245).

The spelling of 1021041420044 in words is "one trillion, twenty-one billion, forty-one million, four hundred twenty thousand, forty-four".