1023220331 has 16 divisors (see below), whose sum is σ = 1185300480. Its totient is φ = 865196640.

The previous prime is 1023220307. The next prime is 1023220337. The reversal of 1023220331 is 1330223201.

It is not a de Polignac number, because 1023220331 - 2⁶ = 1023220267 is a prime.

It is a super-2 number, since 2×1023220331² = 2093959691543499122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1023220337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157730 + ... + 164088.

It is an arithmetic number, because the mean of its divisors is an integer number (74081280).

Almost surely, 2^1023220331 is an apocalyptic number.

1023220331 is a deficient number, since it is larger than the sum of its proper divisors (162080149).

1023220331 is a wasteful number, since it uses less digits than its factorization.

1023220331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6674.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1023220331 is about 31987.8153520993. The cubic root of 1023220331 is about 1007.6809621028.

Adding to 1023220331 its reverse (1330223201), we get a palindrome (2353443532).

The spelling of 1023220331 in words is "one billion, twenty-three million, two hundred twenty thousand, three hundred thirty-one".