1220102323 has 4 divisors (see below), whose sum is σ = 1331020728. Its totient is φ = 1109183920.

The previous prime is 1220102293. The next prime is 1220102333. The reversal of 1220102323 is 3232010221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1220102323 - 2¹⁷ = 1219971251 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1220102297 and 1220102306.

It is not an unprimeable number, because it can be changed into a prime (1220102333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55459186 + ... + 55459207.

It is an arithmetic number, because the mean of its divisors is an integer number (332755182).

Almost surely, 2^1220102323 is an apocalyptic number.

1220102323 is a deficient number, since it is larger than the sum of its proper divisors (110918405).

1220102323 is a wasteful number, since it uses less digits than its factorization.

1220102323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110918404.

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

The square root of 1220102323 is about 34929.9631119187. The cubic root of 1220102323 is about 1068.5596023104.

Adding to 1220102323 its reverse (3232010221), we get a palindrome (4452112544).

The spelling of 1220102323 in words is "one billion, two hundred twenty million, one hundred two thousand, three hundred twenty-three".