431402123211 has 16 divisors (see below), whose sum is σ = 609051613824. Its totient is φ = 270677764224.

The previous prime is 431402123209. The next prime is 431402123221. The reversal of 431402123211 is 112321204134.

It is not a de Polignac number, because 431402123211 - 2¹ = 431402123209 is a prime.

It is a super-4 number, since 4×431402123211⁴ (a number of 48 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (431402123221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4156596 + ... + 4259118.

It is an arithmetic number, because the mean of its divisors is an integer number (38065725864).

Almost surely, 2^431402123211 is an apocalyptic number.

431402123211 is a deficient number, since it is larger than the sum of its proper divisors (177649490613).

431402123211 is a wasteful number, since it uses less digits than its factorization.

431402123211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185050.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 431402123211 its reverse (112321204134), we get a palindrome (543723327345).

The spelling of 431402123211 in words is "four hundred thirty-one billion, four hundred two million, one hundred twenty-three thousand, two hundred eleven".