802020231 has 16 divisors (see below), whose sum is σ = 1194749920. Its totient is φ = 531722880.

The previous prime is 802020227. The next prime is 802020239. The reversal of 802020231 is 132020208.

It is a happy number.

It is not a de Polignac number, because 802020231 - 2² = 802020227 is a prime.

It is a super-2 number, since 2×802020231² = 1286472901866586722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (802020239) 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, 77170 + ... + 86943.

It is an arithmetic number, because the mean of its divisors is an integer number (74671870).

Almost surely, 2^802020231 is an apocalyptic number.

802020231 is a deficient number, since it is larger than the sum of its proper divisors (392729689).

802020231 is a wasteful number, since it uses less digits than its factorization.

802020231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164303 (or 164297 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 802020231 is about 28319.9617054826. The cubic root of 802020231 is about 929.0985333414.

Adding to 802020231 its reverse (132020208), we get a palindrome (934040439).

The spelling of 802020231 in words is "eight hundred two million, twenty thousand, two hundred thirty-one".