521113601431201 has 8 divisors (see below), whose sum is σ = 522838433532384. Its totient is φ = 519391466489280.

The previous prime is 521113601431183. The next prime is 521113601431223. The reversal of 521113601431201 is 102134106311125.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 521113601431201 - 2⁹ = 521113601430689 is a prime.

It is a super-2 number, since 2×521113601431201² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (521113601431601) 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, 673902760 + ... + 674675593.

It is an arithmetic number, because the mean of its divisors is an integer number (65354804191548).

Almost surely, 2^{521113601431201} is an apocalyptic number.

It is an amenable number.

521113601431201 is a deficient number, since it is larger than the sum of its proper divisors (1724832101183).

521113601431201 is a wasteful number, since it uses less digits than its factorization.

521113601431201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1348579631.

The product of its (nonzero) digits is 4320, while the sum is 31.

Adding to 521113601431201 its reverse (102134106311125), we get a palindrome (623247707742326).

The spelling of 521113601431201 in words is "five hundred twenty-one trillion, one hundred thirteen billion, six hundred one million, four hundred thirty-one thousand, two hundred one".