1420121423 has 8 divisors (see below), whose sum is σ = 1624654848. Its totient is φ = 1216002744.

The previous prime is 1420121411. The next prime is 1420121429. The reversal of 1420121423 is 3241210241.

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 1420121423 - 2¹⁶ = 1420055887 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1420121395 and 1420121404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420121429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96311 + ... + 110072.

It is an arithmetic number, because the mean of its divisors is an integer number (203081856).

Almost surely, 2^1420121423 is an apocalyptic number.

1420121423 is a deficient number, since it is larger than the sum of its proper divisors (204533425).

1420121423 is an equidigital number, since it uses as much as digits as its factorization.

1420121423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207373.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1420121423 is about 37684.4984443206. The cubic root of 1420121423 is about 1124.0229008708.

Adding to 1420121423 its reverse (3241210241), we get a palindrome (4661331664).

The spelling of 1420121423 in words is "one billion, four hundred twenty million, one hundred twenty-one thousand, four hundred twenty-three".