1002220423 has 8 divisors (see below), whose sum is σ = 1062940896. Its totient is φ = 942928800.

The previous prime is 1002220409. The next prime is 1002220477. The reversal of 1002220423 is 3240222001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1002220423 - 2²⁵ = 968665991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1002220397 and 1002220406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002230423) 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 7 ways as a sum of consecutive naturals, for example, 355768 + ... + 358573.

It is an arithmetic number, because the mean of its divisors is an integer number (132867612).

Almost surely, 2^1002220423 is an apocalyptic number.

1002220423 is a deficient number, since it is larger than the sum of its proper divisors (60720473).

1002220423 is an equidigital number, since it uses as much as digits as its factorization.

1002220423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714425.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 1002220423 is about 31657.8651048993. The cubic root of 1002220423 is about 1000.7395938661.

Adding to 1002220423 its reverse (3240222001), we get a palindrome (4242442424).

The spelling of 1002220423 in words is "one billion, two million, two hundred twenty thousand, four hundred twenty-three".