1020444321123 has 6 divisors (see below), whose sum is σ = 1473975130524. Its totient is φ = 680296214076.

The previous prime is 1020444321079. The next prime is 1020444321137. The reversal of 1020444321123 is 3211234440201.

1020444321123 is a `hidden beast` number, since 1 + 0 + 2 + 0 + 4 + 443 + 211 + 2 + 3 = 666.

It is not a de Polignac number, because 1020444321123 - 2⁹ = 1020444320611 is a prime.

It is a super-2 number, since 2×1020444321123² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1020444321023) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56691351165 + ... + 56691351182.

It is an arithmetic number, because the mean of its divisors is an integer number (245662521754).

Almost surely, 2^{1020444321123} is an apocalyptic number.

1020444321123 is a deficient number, since it is larger than the sum of its proper divisors (453530809401).

1020444321123 is a wasteful number, since it uses less digits than its factorization.

1020444321123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113382702353 (or 113382702350 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 1020444321123 its reverse (3211234440201), we get a palindrome (4231678761324).

The spelling of 1020444321123 in words is "one trillion, twenty billion, four hundred forty-four million, three hundred twenty-one thousand, one hundred twenty-three".