431143320401 has 4 divisors (see below), whose sum is σ = 442795842612. Its totient is φ = 419490798192.

The previous prime is 431143320397. The next prime is 431143320407. The reversal of 431143320401 is 104023341134.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 104023341134 = 2 ⋅52011670567.

It can be written as a sum of positive squares in 2 ways, for example, as 346657178176 + 84486142225 = 588776^2 + 290665^2 .

It is a cyclic number.

It is not a de Polignac number, because 431143320401 - 2² = 431143320397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (431143320407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5826261050 + ... + 5826261123.

It is an arithmetic number, because the mean of its divisors is an integer number (110698960653).

Almost surely, 2^431143320401 is an apocalyptic number.

It is an amenable number.

431143320401 is a deficient number, since it is larger than the sum of its proper divisors (11652522211).

431143320401 is a wasteful number, since it uses less digits than its factorization.

431143320401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11652522210.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 431143320401 its reverse (104023341134), we get a palindrome (535166661535).

The spelling of 431143320401 in words is "four hundred thirty-one billion, one hundred forty-three million, three hundred twenty thousand, four hundred one".