1020043311 has 8 divisors (see below), whose sum is σ = 1554351744. Its totient is φ = 582881880.

The previous prime is 1020043289. The next prime is 1020043327. The reversal of 1020043311 is 1133400201.

1020043311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1020043311 - 2⁷ = 1020043183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020043391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24286725 + ... + 24286766.

It is an arithmetic number, because the mean of its divisors is an integer number (194293968).

Almost surely, 2^1020043311 is an apocalyptic number.

1020043311 is a deficient number, since it is larger than the sum of its proper divisors (534308433).

1020043311 is an equidigital number, since it uses as much as digits as its factorization.

1020043311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48573501.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1020043311 is about 31938.1168981517. The cubic root of 1020043311 is about 1006.6369570173.

Adding to 1020043311 its reverse (1133400201), we get a palindrome (2153443512).

The spelling of 1020043311 in words is "one billion, twenty million, forty-three thousand, three hundred eleven".