1004020204115 has 4 divisors (see below), whose sum is σ = 1204824244944. Its totient is φ = 803216163288.

The previous prime is 1004020204111. The next prime is 1004020204157. The reversal of 1004020204115 is 5114020204001.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1004020204115 - 2² = 1004020204111 is a prime.

It is a super-2 number, since 2×1004020204115² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1004020204111) 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, 100402020407 + ... + 100402020416.

It is an arithmetic number, because the mean of its divisors is an integer number (301206061236).

Almost surely, 2^{1004020204115} is an apocalyptic number.

1004020204115 is a deficient number, since it is larger than the sum of its proper divisors (200804040829).

1004020204115 is an equidigital number, since it uses as much as digits as its factorization.

1004020204115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200804040828.

The product of its (nonzero) digits is 320, while the sum is 20.

Adding to 1004020204115 its reverse (5114020204001), we get a palindrome (6118040408116).

The spelling of 1004020204115 in words is "one trillion, four billion, twenty million, two hundred four thousand, one hundred fifteen".