1021331053 has 16 divisors (see below), whose sum is σ = 1066770432. Its totient is φ = 976752000.

The previous prime is 1021331029. The next prime is 1021331081. The reversal of 1021331053 is 3501331201.

1021331053 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1021331053 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1021331053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021331023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1071225 + ... + 1072177.

It is an arithmetic number, because the mean of its divisors is an integer number (66673152).

Almost surely, 2^1021331053 is an apocalyptic number.

It is an amenable number.

1021331053 is a deficient number, since it is larger than the sum of its proper divisors (45439379).

1021331053 is a wasteful number, since it uses less digits than its factorization.

1021331053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 1021331053 is about 31958.2704945058. The cubic root of 1021331053 is about 1007.0603846508.

Adding to 1021331053 its reverse (3501331201), we get a palindrome (4522662254).

The spelling of 1021331053 in words is "one billion, twenty-one million, three hundred thirty-one thousand, fifty-three".