431301211331 has 4 divisors (see below), whose sum is σ = 445214153664. Its totient is φ = 417388269000.

The previous prime is 431301211267. The next prime is 431301211333. The reversal of 431301211331 is 133112103134.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 431301211331 - 2⁶ = 431301211267 is a prime.

It is a super-2 number, since 2×431301211331² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 431301211297 and 431301211306.

It is not an unprimeable number, because it can be changed into a prime (431301211333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6956471120 + ... + 6956471181.

It is an arithmetic number, because the mean of its divisors is an integer number (111303538416).

Almost surely, 2^431301211331 is an apocalyptic number.

431301211331 is a deficient number, since it is larger than the sum of its proper divisors (13912942333).

431301211331 is a wasteful number, since it uses less digits than its factorization.

431301211331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13912942332.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 431301211331 its reverse (133112103134), we get a palindrome (564413314465).

The spelling of 431301211331 in words is "four hundred thirty-one billion, three hundred one million, two hundred eleven thousand, three hundred thirty-one".