1020343311 has 40 divisors (see below), whose sum is σ = 1645307664. Its totient is φ = 626434560.

The previous prime is 1020343277. The next prime is 1020343361. The reversal of 1020343311 is 1133430201.

1020343311 is a `hidden beast` number, since 10 + 2 + 0 + 343 + 311 = 666.

1020343311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1020343311 - 2⁷ = 1020343183 is a prime.

It is a super-2 number, since 2×1020343311² = 2082200944604885442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020343361) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 600415 + ... + 602111.

Almost surely, 2^1020343311 is an apocalyptic number.

1020343311 is a deficient number, since it is larger than the sum of its proper divisors (624964353).

1020343311 is a wasteful number, since it uses less digits than its factorization.

1020343311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2293 (or 2284 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1020343311 is about 31942.8131353517. The cubic root of 1020343311 is about 1006.7356330516.

Adding to 1020343311 its reverse (1133430201), we get a palindrome (2153773512).

The spelling of 1020343311 in words is "one billion, twenty million, three hundred forty-three thousand, three hundred eleven".