1220330023 has 16 divisors (see below), whose sum is σ = 1411149600. Its totient is φ = 1042969600.

The previous prime is 1220330009. The next prime is 1220330029. The reversal of 1220330023 is 3200330221.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1220330023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1220329979 and 1220330006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220330029) 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, 193053 + ... + 199273.

It is an arithmetic number, because the mean of its divisors is an integer number (88196850).

Almost surely, 2^1220330023 is an apocalyptic number.

1220330023 is a deficient number, since it is larger than the sum of its proper divisors (190819577).

1220330023 is a wasteful number, since it uses less digits than its factorization.

1220330023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7298.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 1220330023 is about 34933.2223392003. Note that the first 3 decimals coincide. The cubic root of 1220330023 is about 1068.6260710216.

Adding to 1220330023 its reverse (3200330221), we get a palindrome (4420660244).

The spelling of 1220330023 in words is "one billion, two hundred twenty million, three hundred thirty thousand, twenty-three".