5205401523121 has 8 divisors (see below), whose sum is σ = 5239222688000. Its totient is φ = 5171673917232.

The previous prime is 5205401523061. The next prime is 5205401523137. The reversal of 5205401523121 is 1213251045025.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5205401523121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5205401523191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23278110 + ... + 23500663.

It is an arithmetic number, because the mean of its divisors is an integer number (654902836000).

Almost surely, 2^{5205401523121} is an apocalyptic number.

It is an amenable number.

5205401523121 is a deficient number, since it is larger than the sum of its proper divisors (33821164879).

5205401523121 is a wasteful number, since it uses less digits than its factorization.

5205401523121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46779495.

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 5205401523121 its reverse (1213251045025), we get a palindrome (6418652568146).

The spelling of 5205401523121 in words is "five trillion, two hundred five billion, four hundred one million, five hundred twenty-three thousand, one hundred twenty-one".