401232400243 has 8 divisors (see below), whose sum is σ = 414196678656. Its totient is φ = 388269453000.

The previous prime is 401232400211. The next prime is 401232400253. The reversal of 401232400243 is 342004232104.

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 401232400243 - 2⁵ = 401232400211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401232400253) 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, 298830 + ... + 944332.

It is an arithmetic number, because the mean of its divisors is an integer number (51774584832).

Almost surely, 2^401232400243 is an apocalyptic number.

401232400243 is a deficient number, since it is larger than the sum of its proper divisors (12964278413).

401232400243 is a wasteful number, since it uses less digits than its factorization.

401232400243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665585.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 401232400243 its reverse (342004232104), we get a palindrome (743236632347).

The spelling of 401232400243 in words is "four hundred one billion, two hundred thirty-two million, four hundred thousand, two hundred forty-three".