401232540543201 has 32 divisors (see below), whose sum is σ = 596324697259520. Its totient is φ = 266630627083392.

The previous prime is 401232540543101. The next prime is 401232540543209. The reversal of 401232540543201 is 102345045232104.

It is a happy number.

401232540543201 is a `hidden beast` number, since 4 + 0 + 1 + 2 + 3 + 2 + 5 + 405 + 43 + 201 = 666.

It is not a de Polignac number, because 401232540543201 - 2⁹ = 401232540542689 is a prime.

It is a super-2 number, since 2×401232540543201² (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 (401232540543209) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 883130571 + ... + 883584783.

It is an arithmetic number, because the mean of its divisors is an integer number (18635146789360).

Almost surely, 2^{401232540543201} is an apocalyptic number.

It is an amenable number.

401232540543201 is a deficient number, since it is larger than the sum of its proper divisors (195092156716319).

401232540543201 is a wasteful number, since it uses less digits than its factorization.

401232540543201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559062 (or 559056 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 401232540543201 its reverse (102345045232104), we get a palindrome (503577585775305).

The spelling of 401232540543201 in words is "four hundred one trillion, two hundred thirty-two billion, five hundred forty million, five hundred forty-three thousand, two hundred one".