20202231 has 8 divisors (see below), whose sum is σ = 30784384. Its totient is φ = 11544120.

The previous prime is 20202229. The next prime is 20202251. The reversal of 20202231 is 13220202.

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

It is not a de Polignac number, because 20202231 - 2¹ = 20202229 is a prime.

It is a super-2 number, since 2×20202231² = 816260274754722, 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 (20202251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 480985 + ... + 481026.

It is an arithmetic number, because the mean of its divisors is an integer number (3848048).

Almost surely, 2^20202231 is an apocalyptic number.

20202231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20202231 is a deficient number, since it is larger than the sum of its proper divisors (10582153).

20202231 is an equidigital number, since it uses as much as digits as its factorization.

20202231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962021.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 20202231 is about 4494.6891994887. The cubic root of 20202231 is about 272.3535941657.

Adding to 20202231 its reverse (13220202), we get a palindrome (33422433).

The spelling of 20202231 in words is "twenty million, two hundred two thousand, two hundred thirty-one".