1021113343 has 4 divisors (see below), whose sum is σ = 1037852968. Its totient is φ = 1004373720.

The previous prime is 1021113341. The next prime is 1021113349. The reversal of 1021113343 is 3433111201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1021113343 - 2¹ = 1021113341 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 1021113343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021113341) 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 3 ways as a sum of consecutive naturals, for example, 8369721 + ... + 8369842.

It is an arithmetic number, because the mean of its divisors is an integer number (259463242).

Almost surely, 2^1021113343 is an apocalyptic number.

1021113343 is a deficient number, since it is larger than the sum of its proper divisors (16739625).

1021113343 is an equidigital number, since it uses as much as digits as its factorization.

1021113343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16739624.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1021113343 is about 31954.8641524260. The cubic root of 1021113343 is about 1006.9888235587.

Adding to 1021113343 its reverse (3433111201), we get a palindrome (4454224544).

The spelling of 1021113343 in words is "one billion, twenty-one million, one hundred thirteen thousand, three hundred forty-three".