204142121241401 has 16 divisors (see below), whose sum is σ = 233726073168000. Its totient is φ = 174663651207168.

The previous prime is 204142121241389. The next prime is 204142121241463. The reversal of 204142121241401 is 104142121241402.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204142121241401 is a prime.

It is a super-2 number, since 2×204142121241401² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (204142121141401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3202451 + ... + 20458248.

It is an arithmetic number, because the mean of its divisors is an integer number (14607879573000).

Almost surely, 2^{204142121241401} is an apocalyptic number.

It is an amenable number.

204142121241401 is a deficient number, since it is larger than the sum of its proper divisors (29583951926599).

204142121241401 is a wasteful number, since it uses less digits than its factorization.

204142121241401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23662928.

The product of its (nonzero) digits is 4096, while the sum is 29.

Adding to 204142121241401 its reverse (104142121241402), we get a palindrome (308284242482803).

Subtracting from 204142121241401 its reverse (104142121241402), we obtain a palindrome (99999999999999).

The spelling of 204142121241401 in words is "two hundred four trillion, one hundred forty-two billion, one hundred twenty-one million, two hundred forty-one thousand, four hundred one".