1144020001023 has 8 divisors (see below), whose sum is σ = 1694844446000. Its totient is φ = 762680000664.

The previous prime is 1144020001021. The next prime is 1144020001049. The reversal of 1144020001023 is 3201000204411.

1144020001023 is a `hidden beast` number, since 1 + 1 + 440 + 200 + 0 + 1 + 0 + 23 = 666.

It is not a de Polignac number, because 1144020001023 - 2¹ = 1144020001021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1144020000987 and 1144020001005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144020001021) 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, 21185555548 + ... + 21185555601.

It is an arithmetic number, because the mean of its divisors is an integer number (211855555750).

Almost surely, 2^{1144020001023} is an apocalyptic number.

1144020001023 is a deficient number, since it is larger than the sum of its proper divisors (550824444977).

1144020001023 is an equidigital number, since it uses as much as digits as its factorization.

1144020001023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42371111158 (or 42371111152 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 1144020001023 its reverse (3201000204411), we get a palindrome (4345020205434).

The spelling of 1144020001023 in words is "one trillion, one hundred forty-four billion, twenty million, one thousand, twenty-three".