1020322231 has 4 divisors (see below), whose sum is σ = 1020473872. Its totient is φ = 1020170592.

The previous prime is 1020322217. The next prime is 1020322253. The reversal of 1020322231 is 1322230201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1322230201 = 1669 ⋅792229.

It is a cyclic number.

It is not a de Polignac number, because 1020322231 - 2¹¹ = 1020320183 is a prime.

It is a super-2 number, since 2×1020322231² = 2082114910145634722, 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 (1020322531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65235 + ... + 79348.

It is an arithmetic number, because the mean of its divisors is an integer number (255118468).

Almost surely, 2^1020322231 is an apocalyptic number.

1020322231 is a deficient number, since it is larger than the sum of its proper divisors (151641).

1020322231 is an equidigital number, since it uses as much as digits as its factorization.

1020322231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151640.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1020322231 is about 31942.4831689711. The cubic root of 1020322231 is about 1006.7287000475.

Adding to 1020322231 its reverse (1322230201), we get a palindrome (2342552432).

The spelling of 1020322231 in words is "one billion, twenty million, three hundred twenty-two thousand, two hundred thirty-one".