1020440143023 has 16 divisors (see below), whose sum is σ = 1557689214720. Its totient is φ = 582083850816.

The previous prime is 1020440143007. The next prime is 1020440143087. The reversal of 1020440143023 is 3203410440201.

It is not a de Polignac number, because 1020440143023 - 2⁴ = 1020440143007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1020440142984 and 1020440143002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020440141023) 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, 42687865 + ... + 42711762.

It is an arithmetic number, because the mean of its divisors is an integer number (97355575920).

Almost surely, 2^{1020440143023} is an apocalyptic number.

1020440143023 is a deficient number, since it is larger than the sum of its proper divisors (537249071697).

1020440143023 is an equidigital number, since it uses as much as digits as its factorization.

1020440143023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85400206.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 1020440143023 its reverse (3203410440201), we get a palindrome (4223850583224).

The spelling of 1020440143023 in words is "one trillion, twenty billion, four hundred forty million, one hundred forty-three thousand, twenty-three".