431411031255561 has 16 divisors (see below), whose sum is σ = 659887813161984. Its totient is φ = 245583248642064.

The previous prime is 431411031255473. The next prime is 431411031255637. The reversal of 431411031255561 is 165552130114134.

It is not a de Polignac number, because 431411031255561 - 2¹¹ = 431411031253513 is a prime.

It is a super-2 number, since 2×431411031255561² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (431411031255961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39055854631 + ... + 39055865676.

It is an arithmetic number, because the mean of its divisors is an integer number (41242988322624).

Almost surely, 2^{431411031255561} is an apocalyptic number.

It is an amenable number.

431411031255561 is a deficient number, since it is larger than the sum of its proper divisors (228476781906423).

431411031255561 is a wasteful number, since it uses less digits than its factorization.

431411031255561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78111720580.

The product of its (nonzero) digits is 216000, while the sum is 42.

Adding to 431411031255561 its reverse (165552130114134), we get a palindrome (596963161369695).

The spelling of 431411031255561 in words is "four hundred thirty-one trillion, four hundred eleven billion, thirty-one million, two hundred fifty-five thousand, five hundred sixty-one".