1282001023 has 4 divisors (see below), whose sum is σ = 1290491248. Its totient is φ = 1273510800.

The previous prime is 1282000987. The next prime is 1282001027. The reversal of 1282001023 is 3201002821.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1282001023 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 (1282001027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4244886 + ... + 4245187.

It is an arithmetic number, because the mean of its divisors is an integer number (322622812).

Almost surely, 2^1282001023 is an apocalyptic number.

1282001023 is a deficient number, since it is larger than the sum of its proper divisors (8490225).

1282001023 is an equidigital number, since it uses as much as digits as its factorization.

1282001023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8490224.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1282001023 is about 35805.0418656367. The cubic root of 1282001023 is about 1086.3325449845.

Adding to 1282001023 its reverse (3201002821), we get a palindrome (4483003844).

The spelling of 1282001023 in words is "one billion, two hundred eighty-two million, one thousand, twenty-three".