1020343235 has 16 divisors (see below), whose sum is σ = 1238867136. Its totient is φ = 806671488.

The previous prime is 1020343231. The next prime is 1020343241. The reversal of 1020343235 is 5323430201.

It is a cyclic number.

It is not a de Polignac number, because 1020343235 - 2² = 1020343231 is a prime.

It is a super-2 number, since 2×1020343235² = 2082200634420530450, which contains 22 as substring.

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 1020343235.

It is not an unprimeable number, because it can be changed into a prime (1020343231) 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, 285077 + ... + 288633.

It is an arithmetic number, because the mean of its divisors is an integer number (77429196).

Almost surely, 2^1020343235 is an apocalyptic number.

1020343235 is a deficient number, since it is larger than the sum of its proper divisors (218523901).

1020343235 is a wasteful number, since it uses less digits than its factorization.

1020343235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4222.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 1020343235 is about 31942.8119457258. The cubic root of 1020343235 is about 1006.7356080562.

Adding to 1020343235 its reverse (5323430201), we get a palindrome (6343773436).

The spelling of 1020343235 in words is "one billion, twenty million, three hundred forty-three thousand, two hundred thirty-five".