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1042020233213 = 2345305227531
BaseRepresentation
bin11110010100111010011…
…11101110111111111101
310200121122011220102221212
433022131033232333331
5114033024134430323
62114410353534205
7135166142561411
oct17123517567775
93617564812855
101042020233213
11371a11290063
12149b4a574365
1377353a5aa6b
1438611058d41
151c18a7aab78
hexf29d3eeffd

1042020233213 has 4 divisors (see below), whose sum is σ = 1087325460768. Its totient is φ = 996715005660.

The previous prime is 1042020233183. The next prime is 1042020233227. The reversal of 1042020233213 is 3123320202401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1042020233213 - 214 = 1042020216829 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 45305227531 = 1042020233213 / (1 + 0 + 4 + 2 + 0 + 2 + 0 + 2 + 3 + 3 + 2 + 1 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042020233273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22652613743 + ... + 22652613788.

It is an arithmetic number, because the mean of its divisors is an integer number (271831365192).

Almost surely, 21042020233213 is an apocalyptic number.

It is an amenable number.

1042020233213 is a deficient number, since it is larger than the sum of its proper divisors (45305227555).

1042020233213 is an equidigital number, since it uses as much as digits as its factorization.

1042020233213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45305227554.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 1042020233213 its reverse (3123320202401), we get a palindrome (4165340435614).

The spelling of 1042020233213 in words is "one trillion, forty-two billion, twenty million, two hundred thirty-three thousand, two hundred thirteen".

Divisors: 1 23 45305227531 1042020233213