1020420430223 has 8 divisors (see below), whose sum is σ = 1063665416880. Its totient is φ = 977712648640.

The previous prime is 1020420430219. The next prime is 1020420430259. The reversal of 1020420430223 is 3220340240201.

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 1020420430223 - 2² = 1020420430219 is a prime.

It is a super-3 number, since 3×1020420430223³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020426430223) 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, 134297390 + ... + 134304987.

It is an arithmetic number, because the mean of its divisors is an integer number (132958177110).

Almost surely, 2^{1020420430223} is an apocalyptic number.

1020420430223 is a deficient number, since it is larger than the sum of its proper divisors (43244986657).

1020420430223 is a wasteful number, since it uses less digits than its factorization.

1020420430223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268602537.

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

Adding to 1020420430223 its reverse (3220340240201), we get a palindrome (4240760670424).

The spelling of 1020420430223 in words is "one trillion, twenty billion, four hundred twenty million, four hundred thirty thousand, two hundred twenty-three".