214404021431 has 4 divisors (see below), whose sum is σ = 214409148000. Its totient is φ = 214398894864.

The previous prime is 214404021427. The next prime is 214404021449. The reversal of 214404021431 is 134120404412.

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 214404021431 - 2² = 214404021427 is a prime.

It is a super-2 number, since 2×214404021431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 214404021431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214404021031) 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, 2500031 + ... + 2584368.

It is an arithmetic number, because the mean of its divisors is an integer number (53602287000).

Almost surely, 2^214404021431 is an apocalyptic number.

214404021431 is a deficient number, since it is larger than the sum of its proper divisors (5126569).

214404021431 is an equidigital number, since it uses as much as digits as its factorization.

214404021431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5126568.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 214404021431 its reverse (134120404412), we get a palindrome (348524425843).

The spelling of 214404021431 in words is "two hundred fourteen billion, four hundred four million, twenty-one thousand, four hundred thirty-one".