212214032431 has 4 divisors (see below), whose sum is σ = 214092032832. Its totient is φ = 210336032032.

The previous prime is 212214032411. The next prime is 212214032441. The reversal of 212214032431 is 134230412212.

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 212214032431 - 2⁹ = 212214031919 is a prime.

It is a super-2 number, since 2×212214032431² (a number of 23 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 = 212214032396 and 212214032405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212214032411) 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, 939000031 + ... + 939000256.

It is an arithmetic number, because the mean of its divisors is an integer number (53523008208).

Almost surely, 2^212214032431 is an apocalyptic number.

212214032431 is a deficient number, since it is larger than the sum of its proper divisors (1878000401).

212214032431 is a wasteful number, since it uses less digits than its factorization.

212214032431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1878000400.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 212214032431 its reverse (134230412212), we get a palindrome (346444444643).

The spelling of 212214032431 in words is "two hundred twelve billion, two hundred fourteen million, thirty-two thousand, four hundred thirty-one".