1020423213441 has 6 divisors (see below), whose sum is σ = 1473944641650. Its totient is φ = 680282142288.

The previous prime is 1020423213409. The next prime is 1020423213451. The reversal of 1020423213441 is 1443123240201.

1020423213441 is a `hidden beast` number, since 1 + 0 + 2 + 0 + 4 + 2 + 3 + 213 + 441 = 666.

It can be written as a sum of positive squares in only one way, i.e., 868989382416 + 151433831025 = 932196^2 + 389145^2 .

It is not a de Polignac number, because 1020423213441 - 2⁵ = 1020423213409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1020423213451) 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, 56690178516 + ... + 56690178533.

It is an arithmetic number, because the mean of its divisors is an integer number (245657440275).

Almost surely, 2^{1020423213441} is an apocalyptic number.

It is an amenable number.

1020423213441 is a deficient number, since it is larger than the sum of its proper divisors (453521428209).

1020423213441 is a wasteful number, since it uses less digits than its factorization.

1020423213441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113380357055 (or 113380357052 counting only the distinct ones).

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

Adding to 1020423213441 its reverse (1443123240201), we get a palindrome (2463546453642).

The spelling of 1020423213441 in words is "one trillion, twenty billion, four hundred twenty-three million, two hundred thirteen thousand, four hundred forty-one".