1010020003213 has 4 divisors (see below), whose sum is σ = 1087713849628. Its totient is φ = 932326156800.

The previous prime is 1010020003199. The next prime is 1010020003253. The reversal of 1010020003213 is 3123000200101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 381229683844 + 628790319369 = 617438^2 + 792963^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1010020003213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 77693846401 = 1010020003213 / (1 + 0 + 1 + 0 + 0 + 2 + 0 + 0 + 0 + 3 + 2 + 1 + 3).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1010020003193 and 1010020003202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010020003253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38846923188 + ... + 38846923213.

It is an arithmetic number, because the mean of its divisors is an integer number (271928462407).

Almost surely, 2^{1010020003213} is an apocalyptic number.

1010020003213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1010020003213 is a deficient number, since it is larger than the sum of its proper divisors (77693846415).

1010020003213 is an equidigital number, since it uses as much as digits as its factorization.

1010020003213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77693846414.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 1010020003213 its reverse (3123000200101), we get a palindrome (4133020203314).

The spelling of 1010020003213 in words is "one trillion, ten billion, twenty million, three thousand, two hundred thirteen".