1034204200021 has 4 divisors (see below), whose sum is σ = 1034208360652. Its totient is φ = 1034200039392.

The previous prime is 1034204199971. The next prime is 1034204200031. The reversal of 1034204200021 is 1200024024301.

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 790774455025 + 243429744996 = 889255^2 + 493386^2 .

It is a cyclic number.

It is not a de Polignac number, because 1034204200021 - 2³¹ = 1032056716373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1034204200031) 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, 1682046 + ... + 2213071.

It is an arithmetic number, because the mean of its divisors is an integer number (258552090163).

Almost surely, 2^{1034204200021} is an apocalyptic number.

It is an amenable number.

1034204200021 is a deficient number, since it is larger than the sum of its proper divisors (4160631).

1034204200021 is an equidigital number, since it uses as much as digits as its factorization.

1034204200021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4160630.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 1034204200021 its reverse (1200024024301), we get a palindrome (2234228224322).

The spelling of 1034204200021 in words is "one trillion, thirty-four billion, two hundred four million, two hundred thousand, twenty-one".