1420423223 has 4 divisors (see below), whose sum is σ = 1495182360. Its totient is φ = 1345664088.

The previous prime is 1420423211. The next prime is 1420423241. The reversal of 1420423223 is 3223240241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3223240241 = 13 ⋅247941557.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1420423223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420423243) 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, 37379540 + ... + 37379577.

It is an arithmetic number, because the mean of its divisors is an integer number (373795590).

Almost surely, 2^1420423223 is an apocalyptic number.

1420423223 is a deficient number, since it is larger than the sum of its proper divisors (74759137).

1420423223 is an equidigital number, since it uses as much as digits as its factorization.

1420423223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74759136.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 1420423223 is about 37688.5025306127. The cubic root of 1420423223 is about 1124.1025199038.

Adding to 1420423223 its reverse (3223240241), we get a palindrome (4643663464).

The spelling of 1420423223 in words is "one billion, four hundred twenty million, four hundred twenty-three thousand, two hundred twenty-three".