1220333023 has 24 divisors (see below), whose sum is σ = 1519911008. Its totient is φ = 954125568.

The previous prime is 1220332973. The next prime is 1220333029. The reversal of 1220333023 is 3203330221.

It is a happy number.

It is not a de Polignac number, because 1220333023 - 2²⁵ = 1186778591 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220333029) 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 23 ways as a sum of consecutive naturals, for example, 719965 + ... + 721657.

Almost surely, 2^1220333023 is an apocalyptic number.

1220333023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1220333023 is a deficient number, since it is larger than the sum of its proper divisors (299577985).

1220333023 is an equidigital number, since it uses as much as digits as its factorization.

1220333023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1891 (or 1802 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 1220333023 is about 34933.2652782416. The cubic root of 1220333023 is about 1068.6269467071.

Adding to 1220333023 its reverse (3203330221), we get a palindrome (4423663244).

The spelling of 1220333023 in words is "one billion, two hundred twenty million, three hundred thirty-three thousand, twenty-three".