1021041144 has 24 divisors (see below), whose sum is σ = 2765319960. Its totient is φ = 340347024.

The previous prime is 1021041121. The next prime is 1021041181. The reversal of 1021041144 is 4411401201.

1021041144 is a `hidden beast` number, since 1 + 0 + 210 + 411 + 44 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7090492 + ... + 7090635.

It is an arithmetic number, because the mean of its divisors is an integer number (115221665).

Almost surely, 2^1021041144 is an apocalyptic number.

It is an amenable number.

1021041144 is an abundant number, since it is smaller than the sum of its proper divisors (1744278816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1021041144 is a wasteful number, since it uses less digits than its factorization.

1021041144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14181139 (or 14181132 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1021041144 is about 31953.7344296406. The cubic root of 1021041144 is about 1006.9650895628.

Adding to 1021041144 its reverse (4411401201), we get a palindrome (5432442345).

The spelling of 1021041144 in words is "one billion, twenty-one million, forty-one thousand, one hundred forty-four".