1020423 has 16 divisors (see below), whose sum is σ = 1450080. Its totient is φ = 637056.

The previous prime is 1020419. The next prime is 1020431. The reversal of 1020423 is 3240201.

1020423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1020423 - 2² = 1020419 is a prime.

1020423 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1020399 and 1020408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3061 + ... + 3377.

It is an arithmetic number, because the mean of its divisors is an integer number (90630).

2^1020423 is an apocalyptic number.

1020423 is a deficient number, since it is larger than the sum of its proper divisors (429657).

1020423 is a wasteful number, since it uses less digits than its factorization.

1020423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 1020423 is about 1010.1598883345. The cubic root of 1020423 is about 100.6761841115.

Adding to 1020423 its reverse (3240201), we get a palindrome (4260624).

The spelling of 1020423 in words is "one million, twenty thousand, four hundred twenty-three".