1021335053 has 4 divisors (see below), whose sum is σ = 1021537440. Its totient is φ = 1021132668.

The previous prime is 1021335037. The next prime is 1021335067. The reversal of 1021335053 is 3505331201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1021335053 - 2⁴ = 1021335037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021335023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93425 + ... + 103782.

It is an arithmetic number, because the mean of its divisors is an integer number (255384360).

Almost surely, 2^1021335053 is an apocalyptic number.

It is an amenable number.

1021335053 is a deficient number, since it is larger than the sum of its proper divisors (202387).

1021335053 is an equidigital number, since it uses as much as digits as its factorization.

1021335053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202386.

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 1021335053 is about 31958.3330760539. Note that the first 3 decimals coincide. The cubic root of 1021335053 is about 1007.0616993523.

Adding to 1021335053 its reverse (3505331201), we get a palindrome (4526666254).

The spelling of 1021335053 in words is "one billion, twenty-one million, three hundred thirty-five thousand, fifty-three".